Vaseular plants of
Thomes ~reell IJeologieal Reserve
.....
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California Department of Fish and Game VASCULAR PLANTS OF THOMES CREEK ECOLOGICAL RESERVE
Vernon H. Oswald Department of Biological Sciences California State University, Chico Chico, CA 95929-0515
Lowell Ahart 9771 Ahart Road Oroville, CA 95966
Prepared for
The Resources Agency California Department of Fish and Game 601 Locust Street Redding, California 96001
September, 1996 CONTENTS
INTRODUCTION ...... l Figure 1. Location of Thomes Creek Ecological Reserve ...... facing page 1 Table 1. Numerical analysis of the vascular flora of Thomes Creek Ecological Reserve ...... 1 Table 2. Rare plants growing at Thomes Creek Ecological Reserve ...... 2 PRJNCIP AL REFERENCES ...... 2 ACKNOWLEDGMENTS ...... 2 Figure 2. Topography of Thornes Creek Ecological Reserve, with the distribution of some CNPS-listed plants ...... 3
ANN OT ATE .D PLANT LIST ...... 4 Fern allies ...... 4 Di cot flowering plants...... 4 Monocot flowering plants ...... 12 INDEX ...... 15 I I I 13 18 I 17 I I I I ...... ,...... ' Q / 'o::( I 0 ' ll:: I · · - 24 19 c11eey· 2 ---· .. . --···':,.. / r,.,t cCLit_~~./·.. ..-- .. . ._,__ .. -r··· . . ' __ ... __.; . I . __;, · : I .· ·-· : I : I GYLE :t ROAD
I : l i!:i[t,i~iif ifi l i:i~I / : / : / :f.1l ~~~~mr:Jrf ::~n1~:::: ~1~ I : ,_.I tfatbf@]illt& ,...... -· ·· -t·---···-.. . -- 25 30 · I : ~ 29 r- - I 0 (/,) ~ -=:( ll::
I I I I I 36 . 31 / ~~~e~ ~/ ··. },.. , I . -'. .,: [;}I ~I Q.. / T 25 N I T24 N ...... , ...... ··· · ··· ·· ·· ·: ·· ··· ·· ··· · ··· ··· · I I I I I
FIGURE l. Location of Thomes Creek Ecological Reserve. INTRODlJCTION
Thomes Creek Ecological Reserve is located on the west side of the Sacramento VaJley in Tehama County seven miles northwest of Coming, California (Figure l). The property lies on the south side of Gyle Road 2.5 miles west of Interstate 5. A private dirt lane parallels U1e property on the west. The 436 acre reserve consists of the south and west portions of Section 30 in T25N RJW. The Thomes Creek property was purchased by Paci.fie Gas Transmission-Pacific Gas and Electric Company and transferred to the California Department of Fish and Game as partial mitigation for vernal pool destruction along a gas pipeline construction right of way passing through the region. Thomes Creek Eco logical Reserve is being managed by the Northern California-North Coast Regional Office of the California Depart ment of Fish and Game in Redding. The topography of the reserve is gently sloping land with a hwwnocky, or hogwallow, microrelief. Elevation ranges between 322 and 355 feet. The land consists of stratified deposits of alluviwn derived from sedimentary and metamorphic rocks of the North Coast Ranges. Soils are classified as Coming-Redding gravelly loams. Because of U1e hwnmocky microrelief and a clay subsoil, water accwnulates in depressions during the rainy season, fonning a series of shallow pools and wetlands (Figure 2) . These vernal pools and the vegetation they support were of primary impor tance in designating the area as an ecological reserve. Another interesting feature is an unnamed tributary of McClure Creek, wh.ich crosses the property from west to east. Cutbanks and old meander scars along the creek indicate that a substantial flow of water crosses the property during winter storms, but onJy scattered pools remain between storms. The creek dries completely during the summer. The tip of a farm pond, located on the south bow1dary of tJ1e reserve, provides additional plant habitat. The climate of the area is "Mediterranean, warm swnmer," which applies to all of the Sacramento Valley and ad jacent footlulls. Dry hot swnmers are followed by cool, wet winters. Rainfall (based upon records at Red Bluff) aver ages 22 inches per year, tile rainy season usually running from October to April. Vegetation is correlated to topography, soils, and climate, and consists entirely of grasses and forbs. The low water holding capacity of tJ1e soil is apparently responsible for excluding trees, shrubs, and woody vines. The swvey fonning the basis for th.is report was conducted from late March into the middJe of September, 1996 (nine visits). During tile study, 213 species and varieties of vascular plants distributed an10ng 139 genera in 44 fami lies were documented (Table l). No study of this type is ever complete-additional plants are undoubtedJy still to be found on tile reserve. TABLE I. Nwnerical analysis of the vascular flora of Thomes Creek Ecological Reserve.
FAMILI ES GENERA SPECIES VARIETIES TOTAL TAXA NON-NATIVE CNPS LISTED
44 139 210 3 213 73 (34%) 8
Non-native species (indicated by a non-serif typeface in tile plant list) make up 34 percent of the reserve flora. These aliens are typicaJJy weedy and many are restricted to disturbed sites along Gyle Road. tile lane bordering the west boundary of the reserve, the edge of the farm pond, and the pipeline right of way. Non-native grasses account for more than one-third of these alien species. Seven plants found during the SUivey are listed in the CNPS Inventory ofRare and Endangered Vascular Plants of California (Table 2). An eighth plant, Astragalus pauperculus, was reported in an earlier row survey at the Thomes Creek property, but it was not relocated during 1996. Boggs Lake hedge-hyssop (Gratiola heterosepa/a) and Ah.art's nailwort (Paronychia ahartii) are in CNPS List lB, plants that are rare, threatened, or endangered in California and elsewhere. Boggs Lake hedge-hyssop is also State listed endangered. However, recent data indicates that Boggs Lake hedge-hyssop is more common than originally thought, and it is being considered for down-grading to List 4 in the 6th edition of the CNPS Inventory. The flowering interval is indicated for most plants. Each month is divided into three parts: early (day l through 10), mid (day 11 through 20) and late (day 21 onward), and the onset offlowering is indicated accordingly. The end of the flowering period is indicated only by the last month in which flowers were noted. In a few groups, e.g., grasses, sedges, and rushes where antJ1esis is not always obvious, the date indicates tJ1e presence of a well-developed inflores cence. Flowering intervals are based upon limited observations and should be considered to be positive but not neces sarily inclusive statements, i.e., adcLitional field work would certainly show that some plants bloom earlier or later than indicated. Variations can also be expected from year to year, depending upon the amount and distribution of rainfall during the growing season. Many of tlie plants flowering in September on our last visit will probably continue to bloom untiJ tJ1e first killing frost of autumn (indicated Sep ... in the aIU1otated plant list). TABLE 2. Rare plants growing at Thomes Creek EcologicaJ Reserve.
Agrostis hendersonii Hitchc., List 3. CNPS LISTS Astragaius paupercu/us Greene, List 4 (not relocated in I B Rare, threatened, or endangered in California and 1996). elsewhere. Chamaesyce ocei/ata (Durand & Hilg.) Millsp. 2 Rare, threatened, or endangered in CaJifomia, but ssp. ral/anii (S.Watson) Koutnik, List 4. more conunon elsewhere. Downingia pusilla (G.Don) Torr., List 2. 3 Plants about which we need more infonnalion-a Gratiola heterosepala Mason & Bacig., List IB, CE. review list. Navarretia heterandra H.Mason, List 4. 4 Plants of limited distribution- a watch list. Paronychia aharlii Ertter, List 18. STATE LISTS Psilocarphus lenel/us Nuu. var. globiferus (Bertero ex DC.) Morefield, List 4. CE State listed, endangered.
Nomenclature is based upon The Jepson Manual (Hickman 1993). Some synonyms used in older floras are indi cated in brackets. Author abbreviations follow Brummit aud Powell (1992) and may deviate from those in The Jepson ivfanual. There are no accepted standards for corrunon plant names. When available, common names correspond to tJ10se in Th e Jepson Manual and in the 5tJ1 edition of the CNPS Inventory (Skinner and Pavlik 1994). The remaining common names are mostly those of Abrams ( 1923-60). Words describing tJ1e abundance of a plant such as rare, com mon, abundant, etc. are entirely subjective. Voucher specimens of most of the plants found during this study are deposited in the herbarium of California State University, Chico (CHSC) and/or in the herbarium of the Redding Office of the California Department of Fish and Game. Voucbers are indicated by collector(s) and collection number (e.g., Oswald & Ahart 7279) in the a1rnotated pi,UH list.
PRINCIPAL REFERENCES Abrams, L. 1923- This work was performed under the volunteer program of the California Department of Fish and Game. We wish to tl1ank Steve Arrison, Wildlife Biologist and Assistant Regional Lands Coordinator, for coordinating the project and providing maps and ot11er pertinent documents relating to Thomes Creek Ecologica.l Reserve. 2 Navarretia helerandra Paronychia ahartii FIGURE 2. Topography of Thomes Creek EcologicaJ Reserve, with the djstribution of some CNPS-listed plants. The grid consists of 0.25 mile squares ('!. section of'!. sectjon). 3 ANNOTATED PLANT LIST 1 FERN ALLIES along the pipeline ca. 0. 1 m.i north of the south bowtd ary. 27 May). Late May-Jul. [£. castrense Jeps. var. ISOETACEAE-QUILLWORT FAMILY val/icola Jeps., E. vaseyi var. castrense (Jeps.) Hoover lsoiftes howellii Engelm. - HOWELL'S QUILLWORT. ex Mailiias and Constance, E. vaseyi var. val/icola Uncommon but fonning large populations in a few lo (Jeps.) Munz] cations along the creek (Oswald & Ahart 7377.1: Lomatium caruifolium (Hook. & Arn.) J.M.Coult. NWY. SEY. Sect. 30. Intennittent stream ca. 0.6 mi & Rose var. denticulatum Jeps. - FOOTHILL LOMA east of the lane. 15 April). Active during the wet sea TfUM. Scattered plants in grassy upland (Oswald & son. Ahart 7286: NWV.. SWY. Sect. 30. Near tJ1e creek just lsoetes nuttallii A.Braun ex Engelm. - NUTT ALL'S east ofilie lane. 03 April). Mid Mar-Apr. [L. humile QlllLLWORT. Inconspicuous plant in upland soils (J.M.Coult. & Rose) Hoover ex Mailiias & Constance] (Oswald & Ahart 7284: NWV. SWV. Sect. 30. North ASCLEPIADACEAE- MJLKWEED FAMILY side of i.h e creek just east of tJ1e lane. 03 April). Active Asclepias eriocarpa Benth. - INDIAN MILKWEED. during ilie wet season. Conunon on gravel bars and on ilie dry bed of tJJe lsoetes orcuttii A.A.Eaton - ORclJIT's QlllLL creek (Oswald 7893: NW'!. SW'/., Sect. 30. Near the WORT. ShaHow water and later on the drying beds of lane. 27 June). Late May- Jul . pools (Oswald & Ahart 7369: SEY. SWV. Sect. 30. Pools on the souili side of the creek ca. 0.4 mi east of ASTERACEAE- SUNFLOWER FAMILY the lane. 15 April). Active during the wet season. ICo mposi tae I MARSILEACEAE - M.ARSfLEA FAMILY Achyrachaena mollis Schauer - BLOW-WIVES. Lo cally common in deeper soils in grassy upland (Os Marsilea vestita Hook. & Grev. ssp. vestita - 1 wald &Ahart 7368: SW /., SWY-1 Sect. 30. Near the HAIRY PEPPERWORT. Common in pools and on the dry drainage on ilie souili side oftl1e creek ca. 0.1 mi east bed oftl1e intermittent stream (Oswald &Ahart 7500: ofilie lane. 15 April). Early Apr. NE'!. SWY-1 Sect. 30. Bed of the creek ca. 0.3 mi east Blennosperma nanum (Hook.) S.F.Blake var. of the lane. 29 April). Active during ilie wet season nanum - YELLOW-CARPET. Common in grassy upland but continuing to grow into summer. [M mucronata tl1roughout ilie reserve (Oswald 7247: Bank of the A.Braun] creek near ilie lane. 20 March). Mid Mar-Apr. Pilularia americana A.Braun - AMERICAN PILI.,. Centaurea solstitialis L. - YELLOW STAR WORT. Locally abundant on the drying beds of vernal THISTLE. Conunon and widespread weed in deeper pools and drainages (Oswald & Ahart 7360: SW'/., soils (not collected). Native to southern Eur. Late SWY. Sect. 30. Drainage on the souili side of the creek May-Sep ... ca. 0.1 mi east of the lane. 15 April). Active during ilie Chamomilla suaveolens (Pursh) Rydb. - CoMMON wet season. PINEAPPLE-WEED. Locally conunon in disturbed soil DI COT F LOWERING PLANTS along the lane (Oswald &Ahart 7387: NW'/.i NWV. Sect. 30. Just soutl1 ofGyle Rd. 15 April). Mid Apr. AMARANTliACEAE- AMARANTH FAMILY [Matricaria matricarioides (Less.) Porter] Amaranthus a/bus L. - T\.JM BLEWEED. Scattered Cichorium intybus L. - CHICORY. Weed along plants on the dry bed of the creek, on tl1e drying mar Gyle Rd. (not collected). Native to Eur. Mid Jun-Jul. gin of the fann pond, and in ilie ditch along Gyle Rd. Conyza canadensis (L.) Cronquist - CANADIAN (Oswald 7899: SEV. SWY. Sect. 30. Fam1 pond. 27 HORSEWEED. Scattered plants to localized popuJations June). Early Jun- Sep .. . in dry upland (not collected). Mid Aug-Sep ... APIACEAE- CARROT FAMlLY Conyza floribunda Humb., Bonpl. & Kunt11 - [ Umbelliferae 1 MANY-FLOWERED HORSEWEE D. Locally common in the Eryngium castrense Jeps. - CoYOTE-THISTLE. ditch along Gyle Rd. (not collected). Native to tiopical Common to locally abundant in drainages, on tJJe bed Amer. Mid Aug-Sep ... of tl1e creek, in wetlands, and in vernally wet upland Fi/ago ga/fica L. - NARROW-LEAVED FILAGO. soils (Oswald & Ahart 7646: SEY. SEY., Sect JO. Pool Scattered in gravelly upland (Oswald & AharJ 7377.2: NWV. SEY-t Sect. 30. High bank of the creek ca. 0.6 mi 1 east oftl1e lane. 15 April). Native to the Medit. Early Non-native plants are indicated by an italic. non-$eriftypeface (Fi/ago Apr-May. [Logfla gallica (L.) Coss. & Genn. l ga/lica); plant names that appear in non-italic boldface (faronychia ahartil) are listed in the 5th edition ofll1e CNPS Inventory (Skinner Gnaphalium luteo-a/bum L. - WEEDY CUDWEED. and Pavlik.. 1994). Moist weedy and grassy places (Oswald & Ahart 7651: 4 NW'/. sw•;. Sect. 30. Bed of a vernally flooded exca Lasthenia platycarpha (A.Gray) Greene - ALKALI vation on the north side of the creek ca. 0. 1 mi east of GOLDFIELDS. Abundant and widespread in upland the lane. 27 May). Mid Apr- Jun. tltroughout the reserve (Oswald &Ahart 7299: Grassy Gnaphalium palustre Nutt. - WESTERN MARsH flats near the creek. 03 April). Mid Mar-Apr. [Baeria CUDWEED. Locally common in wet soil along the edge p/atycarpha (A.Gray) A.Gray) of the creek (not collected). Late May-Jun. Layiafremontii (Torr. & A.Gray) A.Gray - FRE Hemizoniaf,tchii A.Gray- FITCH'S SPIKEWEEO. MONT'S TIDYTIPS. Scat1ered in grassy upland (not col Common and widespread in dry upland (Oswald 8240: lected). E.arly Apr. NW'/. sw•;. Sect. 30. Lane near the creek. 22 August). Leontodon taraxacoides (Viii.) Merat ssp. longi Mid Jun-Sep ... rostris Finch & P.D.Sell - LoNG-BEAKED HAWK.BIT. Hesperevax acaulis (Kellogg) Greene var. acaulis Scattered in grassy upland (0.swald &Ahart 7370: - Dw ARF EV AX. Locally abundant along drainages, in SE'/. SW 1!. Sect. 30. Near tl1e cluster of pools on tlte vernally moist upland, and on the flood p-Jain of the souU1 side of the creek ca. 0 .4 mi east of the lane. l 5 creek ( Oswald & A hart 7311: Drying bed of a shallow, April). Mid Apr-Jul. [L. leysseri (Wallr.) Beck, in vernally wet drainage ca. I 00 ft south of the creek. 03 pa.rt; L. nudicau/is (L.) Merat ssp. taraxacoides (ViJJ.) April). Plants growing on bare soil of gopher mounds Schinz & Tell.] are strikingly robust, wit11 many prostrate stems and Lessingia nana A.Gray- DWARF LESSINGlA. Com 1 multiple flowering heads (Oswald & Ahart 7371: SE /. mon in localized populatfons in gravelly, sparsely sw•;. Sect. 30. Near the cluster of pools soutl1 of the vegetated places in upland (Oswald 8241: SEY. SWY. creek ca. 0.4 mi east of the lane. 15 April). Mid Mar Sect 30. High bank of the creek ca. 0.3 mi east of tl1e Apr. [Evax acaulis (Kellogg) Greene) lane. 22 August). The rose-colored pappus bristles Hypochoeris g/abra L. - SMOOTH CAT'S-EAR. make this a conspicuous plant even into autunm long Gravelly soils of uplands and stream margins (Oswald after tlie plants have dried up. Late Jun- Jul. & Ahart 7485: SEY. sw•;. Sect. 30. Near the fann Micropus californicus Fisch. & C.A.Mey. var. pond. 29 April). Native to Eru. Early Apr- Jun. californicus - SLENDER COTIONWEED. Common and Lactuca serriola L. - PrucKL Y LETTIJCE. Conw1on widespread in upland (Oswald &Ahart 7480: SEY. and widespread in upland (0.swald 7898: SWY. SEY. SWY. Sect. 30. Near the south fence ca. 0.2 mi west of Sect. 30. Near the south boundary ca. 0.7 mi east of the fa.nn pond. 29 April). Late Mar- Apr. the lane. 27 June). Both the typical variety witlt pin Microseris acuminata Greene - SIERRA FOOTHILL nately lobed leaves and the var. integrata Gren. & MicROSERJS. Locally common in thin soils of grassy Godr. (= fonna integrifolia Bogenh.) with strap upland (not collected). Mid Apr (plants with both shaped leaves are present, the latter the more numer flowers and fruits). ous form. Native to Eur. Early May-Sep .. . Microseri.s douglasii (DC.) Sch.Bip. ssp. douglasii Lagophylla glandulosa A.Gray - GLANDULAR - DOUGLAS' M!CROSERJS. Locally conunon in clay HAR.ELEAF. Conunon and widespread in dry upland soils on tJ1e drying beds of shallow pools and drain (Oswald 7555: NE'!. SW'/. Sect. 30. On the large me ages (Oswald & Ahart 7481: SEY. SWY. Sect. 30. ander plain of the creek ca. 0.3 mi east of the lane. 13 Drainage near tlte south fence just west of tJ1e farrn May). Early May-Sep ... [Includes the spring pond. 29 April). Mid Apr. flowering ecotype ssp. serrata (Greene) D.D.Keck] Psilocarphus hrevissimus Nutt. var. hrevissimus - Lasthenia californica DC. ex Lindl. - CALIFORNIA DWARF WOOLLY -M ARBLES. Conunon on the drying GOLDFIELDS. Scattered populalions in uplaitd but not beds of vernal pools and wet drainages (not collected). common (not collected). Early Apr. IBaeria chryso Early Apr-Jun. stoma Fisch. & C.A.Mey.J Psilocarphus oregonus Nun. - OREGON WOOLLY Lastheniafremontii (Torr. ex A.Gray) Greene - MAR.BLES. Scattered colonies on drying beds of vernal FREMONT'S GOLDFIELDS. Locally abundant on margins pools and wetlands (Oswald &Ahart 7365: SW'!. of vernal pools, drainages, and wet depressions sw•;. Sect. 30. Drainage on the south side of the creek (Oswald &Ahart 7479: SEY. SWY. Sect. 30. Small ca. 0. 1 mi eastoftbe lane. 15 April). Mid Apr- Jw1. pool at the south fence ca. 0.2 mi west of the .funn Psilocarphus tenellus var. gJobiferus (Bertero ex pond. 29 April). Early Apr-Jun. [Baeriafremontii DC.) Morefield - ROUND WOOLLY-MARBLES. On the (Torr. ex A.Gray) A.Gray] drying beds of pools and drainages (Oswald & Ahart Lasthenia gtaherrima DC. - SMOOTH GOLDFIELDS. 7372: SEY. SWY. Sect. 30. Pool in the cluster of pools Locally abundant in deeper pools near the pipeline and on the soutlt side of the creek ca. 0.4 mi east of the at the fann pond on tlte south bow1dary (Oswald & lane. 15 April). Mid Apr-Jw1. CNPS List 4, proposed Ahart 7375: NEY-I SEY. Sect. 30. Pool along t11e pipe for deletion from the 6th Edition of the Inventory. line ca. 0.3 mi oorth oftlle south bou.ndary. 15 April). Senecio vulgaris L. - OLD-MAN-IN-THE-SPRING. Mid Apr-Jun. Locally common in grassland and along the margins 5 1 of the creek (Oswald &Ahart 7297: NEY. SWY. Sect. banks of creek (Oswald & Ahart 7366: SW /. SWY. JO. Along the creek 0.4 mi east of the lane. OJ April). Sect. JO. Near a flooded drainage on t11e soutl1 side of Native to Eurasia. Mid Mar-Apr. the creek ca. 0. I mi east of tl1e lru1e. 15 April). Mid Soliva sessilis Ruiz & Pav. - LAWN BUR WEED. Mar-Apr. (P. fulvus var. campestris (Greene) J.M. Uncommon in grassy upland (Oswald & Ahart 7374: Jolmst., P. campestris Greene) SEY. SEY. Sect. JO. Pipeline ca. 0.1 mi north of the Plagiobothrys greenei (A.Gray) l.M.Johnst. - Lo- · south boundary. 15 April). Native to S. A.mer. Early cally abw1dant in vernally moist upland (Oswald & Apr. [S. pterosperma (A.Juss.) Less., S. daucifolia Ahart 7283: NW 1!. SWY. Sect. 30. Along the creek Nutt.] near tl1e lane. OJ April). Late Mar-Apr. {A/locarya Sonchus asper(L.) Hill ssp. asper- SPINY· greenei (A.Gray) Greene) LEAVED SOW-THISTLE. Weed in grassy upland and Plagiobothrys Jeptocladus (Greene) I.M.Johnst. - along the creek (Oswald & Ahart 7642: NEV. SW 1I. ALKALI POPCORN-FLOWER. On tl1e drying beds of ver Sect. JO. Edge of tl1e creek ca. 0.4 mi east of the lane. nally wet pools and drainages (not collected). Mid 27 May). Native to Eur. Mid Apr-Jul. Apr. Xanthium strumarium L. - COCKLEBUR. Seedlings Plagwbotl,rys scriptus (Greene) I.M.Johnst. - were conunon along tl1e creek in L996, but all dried up SCRIBE'S POPCORN-FLOWER. Grassy upland; the first without flowering. A few plants were able to flower popcorn-flower to bloom in t11e spring. (Oswald & along the fann pond (not collected). Mid Sep. [In Ahart 7292.2: NE'!. SWY. Sect. JO. Edge ofa small, cludes var. canadense (Mill.) Torr. & A.Gray & var. vernally flooded depression on the north side of the glabratum (DC.) Cronquist! creek ca. 0.4 mi east oftlle lane. OJ April). Early Mar BORACINACEAE - SOR.ACE FAMILY Apr. [Allocarya leptoc/ada Greene] Plagiobothrys shastensis Greene ex A.Gray - Amsinckia lycopsoides Lelun. - BllGLOSS SHASTA POPCORN-FLOWER. Localized populations in FIDDLENECK. Scattered plants along roads and in grassy upland (Oswald & Ahart 7381: NEV. SWV. grassy upland (Oswald & Ahart 7314: NW'!. NW'!. Sect. JO. North side of the creek ca. 0.3 mi east of the Sect. JO. Edge of Gyle Rd. OJ April). Late Mar-Apr. lane. 15 April). Late Mar-Apr. Amsinckia menziesii (Lel1m.) A.Nelson & J.F. Plagwbotl,rys stipitatus (Greene) I.M.Johnst. var. Macbr. var. m enziesii- MENZIES' FIDDLENECK. Uu micranthus (Piper) J.M.Johnst. - SMALL-FLOWERED conunon along the creek (Oswald & Ahart 7378: STALKED POPCORN-FLOWER. Common on the drying NW'!. SE'!. Sect. JO. Bank of t11e creek ca. 0.6 nli east beds of pools and drainages (Oswald & Ahart 7505: of the lane. 15 April). Mid Apr. NW1!. SWV. Sect. JO. Along the creek ca. O. l mi east Lryptantha jlaccida (Douglas ex Lehm.) Greene - oftl1e lane. 29 April). Mid Mar-May. [A/locarya sti WEAK-STEMMED CRYPTANTHA. LocaJly common on pitata Greene ssp. micrantha Piper] gravel bars (Oswald & Ahart 7495: NEV. SWY. Sect. 30. Creek ca. 0.3 mi east of the lane. 29 April). Late BRASSICACEAE- MUSTARD FAMILY Apr. [Crucife rae I Heliotropium europaeum L. - EUROPEAN Athysanus pusillus (Hook.) Greene - PEITY HELIOTROPE. Scattered plants in disturbed soil along ATHYSANUS. Uncommon on the bank of creek (not the lane, on gravel bars in the creek, and at the farm collected). In fruit early Apr. pond (Oswald 7900: NW comer Sect. 30. Edge of Gyle Capsella bursa-pastoris (L.) Medik. - SHEP· Rd. at t11e lane. 27 June). Native to soutl1ern and east HERD 'S-PURSE. Scattered plants in vernally wet uplru1d ern Eur., N. Afr. Late Jun-Sep ... (not collected). Native to Eur. Mid Mar-Jun. Pectocarya pusilla (A.DC.) A.Gray- LITTLE Cardamine oligosperma Nutt. - WESTERN BITTER PECTOCARY A. Localized populations in gravelly up CRESS. Locally abtmdant in vernally wet drainages land soils (Oswald & Ahart 7291 : NE'!. SWY. Sect. 30. (Oswald 7236: SEY. SEY. Sec. JO. Drainage in the Bank of the creek ca. 0. 4 mi east of tl1e lane. 03 southeast comer of t11e reserve. 20 March). Mid Mar April). Late Mar-Apr. Apr. Plagiobothrys austiniae (Greene) f.M.Jolmst. - Lepidium nitidum Null. var. nitidum - SHIN[NG AUSTIN 'S POPCORN-FLOWER. Common and widespread PEPPER-GRASS. LocaJly abtmdru1t in grassy ru1d grav in vernally moist upland (Oswald & Ahart 7282: elly places (Oswald 7239: Bank of the creek ca. 0.5 mi NWY.. SW'!. Seel. 30. AJong the edge of the creek at east of the lane. 20 March). Mid Mar. (flowering and t11e lane. 03 April). Mid Mar-Apr. (A/locarya austi frujting). nae Greene] Lepidium strictum CS .Watson) Rattan - UPRIGHT Plagiobothrysfulvus (Hook. & Arn.) I.M.Johnsl. - PEPPER-GRASS. Hard-packed soil on tl1e lane along t11e FULVOUS POPCORN-FLOWER. Locally abundant in west side of the par~I (Oswald &Ahart 7386: NWY. deeper soils on mounds in grassy upland and on the 6 NW 1!. Sect. 31. Just south of Gyle Rd. 15 April). Mid and tbe lane. 20 March). [Arenaria californica Apr (with fruits). (A.Gray) W.H.Brewer) Raphanus raphanistrum L. - JOINTED CHAR Minuartia douglas.ii (Fenzl ex Torr. & A.Gray) WCK. Scattered plants in grassy and disturbed places Mattf. - DOUGl.AS' SANDWORT. Locally abundant on a (Oswald & Ahart 7385: NW1!. NWV. Sect. 3 1. Lane gravel bar along the creek (Oswald &Ahart 7382. 1: 1 ca. 0.1 mi south of Gyle Rd. 15 April). Native to NE /. SW'!. Sect. 30. Large meander plain of the creek Medit. Eur. Mid Mar-Sep .. . ca. 0.3 mi east of the Jane. 15 April). Mid Apr. [Are Thysanocarpus radians Benth. - SPOKEPOD. Lo· naria douglasii Fenzl ex Torr. & A.Gray] calized popuJations on the upper banks and flats along Paronychia ahartii Ertter - AHART'S NAILWORT. the creek (Oswald 7240: center SWV. Sec. 30. Bank of Uncommon on thinly vegetated patches of gravel in creek 0.25 mi east of the lane. 20 March). Mid Mar upland (Oswald & Ahart 7305: SEY. SW"/. Sect. 30. (flowering and fruiting). Just south of tbe creek ca. 0. 2 mi east of the lane. 03 CALLITRJCHACEAE- WATER-STAR.WORT FAMILY April. Observed but not collected on a high bluff on the north side of the creek near tbe center of Sect. 30. Callitriche hermaphroditica L. - NORTHERN 15 April). Early Apr. CNPS List lB. WATER-STAR WORT. Locally abundant in the farm pond Petrorhagia dubia (Raf.) G.L6pez & Romo - on the south boundary (Oswald & Ahart 7484: SEY. GRASS-PINK. Common and widespread in grassy up SWV. Sect. 30. 29 April). Late Apr. (flowering and land and on gravel bars (Oswald & Ahart 7494: NEV. fruiting). [C. autumnalis L.] SWV. Sect 30. Large meander plain on tbe north side Callitriche marginata Torr. - WINGED WATER of the creek ca. 0.3 mi east of tbe lane. 29 April). Na STARWORT. Common in water and later on the drying tive to sout11em Eur. Mid Apr. [Kohlrauschia velutina beds of pools and drainages (Oswald & Ahart 7363: (Guss.) Reichenb., Tunica prolifera (L.) Scop., misap SWV. SWV. Sect. 30. Drainage on the south side of the plied) creek ca. 0.1 mi east of the lane. 15 April). Mid Mar Sagina decumbens (Elliott) Torr. & A.Gray ssp. Jun. [C. longipedunculata Morang, C. marginata var. occidentalis (S. Watson) G.E.Crow -WESTERN PEARL longipedunculata (Morang) Jeps.] WORT. Scattered plants on tbe bare, gravelly edges of CAMPANULACEAE- BELLFLOWER FAMILY the dirt lane. (Oswald &Ahart 7313: Just north oftbe Downingia omatissima Greene var. ornatissima - creek. 03 April). Early Apr. [S. occidentalis S.Watson) FOLDED DOWNINGIA. Locally abundant on the drying Si/ene gallica L. - WINDMILL-PINK. Scatterer to beds of pools and drainages (Oswald & Ahart 7466: locally common on banks and gravel bars of tbe creek NW 1!. SW'!. Sect. 30. Gravel on tbe bed oftbe creek. and in grassy upland (Oswald & Ahart 7482: SEY. 1 29 April). Mid Apr-Jun. SW!. Sect. 30. Near the farm pond. 29 April). Native Downingia pusilla (G.Don) Torr. - DWARF to Eur. Early Apr-JUJl. Spergularia bocconei (Scheele) Foucaud ex Me OOWNINGIA. Locally abundant Oil the drying beds of vernal pools, vernally wet drainages, and the receding rino - BOCCONE'S SANOSPURRY. Locally abundant Oil edge of the fa nn pond (Oswald & Ahart 7310: SW 1!. the bare, gravelly edges of the lane (Oswald & Ahart 03 SW 1!. Sect. 30. Shallow, vernally wet drainage ca. 100 7312: Just north of the creek. April). Native to ft soutb of the creek near the lane. 03 April). Early southwest Eur. Early Apr-May. Apr-Jun. CNPS List 2. [D. humilis Greene) Spergu/aria rubra (L.) J. & C.Presl - RUBY GiJhopsis specularioides Nutt. - COMMON BLUE SANDSPURRY. Common in ha.rd, dry soil along the CUP. Uncommon in vernally moist places (Oswald & edges of the lane (not collected). Native to Eur. Late Ahart 7379: NEV. SW1!. Sect. 30. Gravel on the large Apr-May. Stellaria media (L.) Viii - COMMON CHICKWEED. meander plain of tbe creek ca. 0.3 mi east of the Jane. 15 April). Mid Apr-May Uncommon in grassy upland and in moist disturbed places (Oswald &Ahart 7308: SEY. SW11. Sect. 30. CARYOPHYLLACEAE - PINI< FAMILY Along tbe high bank of the creek ca. 0.3 mi east of the Cerastium glomeratum Thuill. - STICKY MOUSE lane. 03 April). Native to coastal Eur. Mid Mar-Apr. EARED CHICKWEED. Grassy and gravelly slopes and Stellaria niJens Nutt. - SHINY STAR WORT. Un· flats (Oswald & Ahart 7300: NEY. SWV.. Sect. 30. In conunon on grassy banks (Oswald & Ahart 7307: SEY. gravel on the meander plain ca. 0.4 mi east of the lane. S WV. Sect. 30. High bank of creek at tbe meander ca. 03 April). Native to Eur. Late Mar-Apr. (C. viscosum 0.3 mi east of the lane. 03 April). Late Mar-Apr. L., misapplied] CONVOLVULACEAE- MORNING-GLORY FAMILY Minuartia californica (A.Gray) Mattf. - CALI FORNIASANDWORT. Common in grassy upland Convolvu/us arvensis L. - BINDWEED. Roadsides, tbroughout tbe reserve. Mid Mar-Apr. (Oswald 7246: grassy upland, at tbe farm pond (not collected). Native NW 1!. SWY. Sect. 30. Near the junction of tbe creek to Eur. Early May-Jul 7 CRASSULACEAE - STONECROP FAMILY tan ii is not as constant in its traits as floras would in Crassula aquatica (L.) Scbonl. - WATER PYGMY dicate, or else tl1e plants on the reserve are intem1edi WEED. Locally abundant on the drying beds of vernal ates between ssp. ocel/ata and ssp. ra/lanii. Late May pools, vernaJ wetlru1ds, and at t11e fann pond (Oswald Sep ... CNPS List 4 (candidate for upgrade to List IB & Ahart 7362: SW'!. SWY. Sect. 30. Drainage on the in tlie 6th edition of tl1e Inventory). south side of the creek ca. 0.1 mi east of the lane. 15 Eremocarpus setigerus (Hook.) Benth. -TlJR.KEY· April). Early Apr- Jun. [Ti/laea aquatica L., in part) MULLEIN. Common and widespread summer ru1d fall Crassula connata (Ruiz & Pav.) A.Berger annual in dry upland, on gravel bars along the creek, PIGMYWEED. Gravelly spots in upland (not collected). and on the dry beds of vernal pools (Oswald 7894: Early Apr. [Til/aea erec/a Hook. & Am.) NW'!. SWY. Sect. 30. Along the creek near the lane. Crassu/a til/aea Lest.-Garl. - MOSSY PIGMYWEED. 27 Jm1e). Late May-Sep ... Gravelly upland (not collected). Native to Medit. Early FABACEAE- LEGUME FAMILY Apr. [Tillaea muscosa L. J (leguminosae ) CUSCUTACEAE- DODDER FAMILY Astragalus gambelianus E.Sheld. - GAMBEL'S Cuscuta howelliana P.Rubtzov - BOGGS LAKE MILK-VETCH. Known only from a localized population DODDER. Locally abundant on Navarretia leucoceph on the north bank of the creek at tl1e large meander a/a and Eryngium castrense in drying vernal pools and (Oswald & Ahart 7496: NEV. sw•;.. Sect. 30). Late wetlands (Oswald & Ahart 7645: SE'!. SE'!. Sect. 30. Apr (in fruit). Pool along the pipeline ca. 0.1 mi north of the south Astragalus pauperculus Greene- DEPAUPERATE b0trndary. 27 May). Late May-Jun. MILK-VETCH. Reported in an earlier row survey at the Thomes Creek site (Department of Fish & Game ELATINACEAE - WATERWORT FAMILY docwnent) but not encountered during the 1996 sur Elatine californica A.Gray - CALIFORNIA WArnR vey. CNPS List 4. WORT. Common on wet mud along the receding mar Lotus humistratus Greene - FOOTHILL LOTIJS. Dry gin of the fann pond (Oswald 7554: SE'/. SWY. Sect. banks and gravel bars (Oswald & Ahart 7502: NE'!. 30. 13 May). Early May- Jun. SWV. Sect. 30. North side of the creek ca. 0.3 mi east of t11e lane. 29 April). Late Apr. EUPHORB1ACEAE - SPURGE FAMrLY Lotus purshianus (BenU1.) Clem. & E.G.Clem. Chamaesyce macu/ata (L.) Small - SPOTTED var. purshianus - SPANISH LOTUS. Locally common in SPURGE. Weed in disturbed places (Oswald 7901: NW grassy upland along Gyle Rd. (not collected). Late corner Sect. 30. Edge of Gyle Rd. at the lane. 27 June). Jun-Sep ... Native to eastern US. Mid Jun-Sep ... [Euphorbia Lotus wrangeli.anus Fisch. & C.A.Mey. - maculata L., E. supina Raf.] WRANGEL LOTUS. Uncommon on tl1c bank of creek Chamaesyce ocellata (Durand & Hllg.) Mi.lisp. (not collected). Early Apr. IL. subpinnalus Lag. mis ssp. rattan ii (S. Watson) Koutnik - STON YCR.EEK applied, Hosackia subpinnata (Lag.) Torr. & A.Gray, SPURGE. C. ocel/ata ssp. ra/lanii was described from misapplied! specimens collected along Srony Creek in Glenn Lupinus bicolor Lindl. var. tridentatus Eastw. ex County and is apparently restricted to the west edge of C.P.Sm. - BICOLORED LUPINE. Grassy upland (not tl1e valley in Glenn and Tehama counties. lt differs collected). Mid Mar-May. [Varieties not recognized from the completely glabrous ssp. ocel/ata in being by Riggins in The Jepson Manual] pubescent on its leaves, stems, and involucres. The Lupinus nanus Douglas ex Benth. var. apricus glands of t11e involucres often have well-developed (Greene) C.P.Sm. - SKY LUPINE. Localized populations pet.aJoid appendages, .which are never found in ssp. in well-drained upland (not collected). Late Mar-Apr. ocellata. (Varieties not recognized by Riggins in The Jepson On the rese rve, a spurge is common ru1d wide Manual] spread in dry upland ru1d on gravel bars along the Lupinus pachylohus Greene - BIG-PODDED creek. These plants usually exhibit sparse to moderate LUPINE. Grassy and gravelly slopes and flats. (Oswald pubescence (Oswald 7896: NEV. SWV. Sect. 30. 1 1 & Ahart 7298: NE /. SW /. Sect. 30. Gravelly flat at Gravel bar bordering the creek ca. 0.3 mi east of the the meander of the creek ca. 0.3 mi east of tlle lane. 03 lane. 27 June), but a few plants are completely glab April). Mid Mar-Apr. rous (Oswald 8242: SWY. SWY. Sect. 30. Edge of the lupinus polycarpus Greene - SMALL-FLOWERED lane between the creek and the south boundary. 22 LUPIN E. Common and widespread in grassy upland August). The latter plant, however, bears vestigial (Oswald &Ahart 7279: SE 1!. SWV. Sect. 30. Near the gland appendages, which seem to be lacking on otl1er creek at t11e lane. 03 April). Mid Mar-Apr. [L. mi specimens examined on the reserve. Eit11er ssp. rat- cranthus Douglas. Included in L. bicolor by Riggins in 8 The Jepson Manual but distinct and easily separated in 7285: NW'!. SW'!. Sect. 30. Along the creek near t11e our area.] lane. 03 April). Early Apr. Medicago po/ymorpha L. - COMMON BUR Vicia villosa ssp. varia (Host) Corb. - WCNTER Cl..OVER. Common in upland and along the creek. VETCH. Scattered in upland and along the creek. (Oswald &Ahart 7304: NEY. SWY. Sect. 30. Edge of (Oswald & Ahart 7487: SEY. SWY. Sect. 30. Near t11e the creek ca. 0.4 mi east of the lane. 03 April). Plants fann pond. 29 April). Native to Eur. Late Mar- Jun. in which the fruits lack spines are common; t11ey are W villosa var. glabrescens W.D.J.Koch, V. dasycarpa sometimes recognized as the var. brevispina (Benth.) Ten.] Heyn. Native to Medit Late .Mar- Apr. GENTlANACEAE - GENTIAN FAMILY Medicago praecox DC. - MEDITERRANEAN BUR CLOVER. Localized population in gravel along t11e edge Centaurium muehlenbergii (Griseb.) W. Wight ex of t11e creek (Oswald & Ahart 7303: NEY. SW'/. Sect. Piper - JUNE CENTAURY. Depauperate plants were 30. Ca. 0.4 mi east of the lane. 03 April). Native to found in upland near the large vernal pool north of the Medit. Late Mar-Apr. farm pond on 29 April (Oswald & Ahart 7488: SEY. Trifolium albopurpureum Torr. & A.Gray var. al SW'!. Sect. 30). (C.jloribundum (BenU1.) B.L.Rob.] bopurpureum - INDIAN CLOVER. Localized popula Cicendia quadrangularis (Lam.) Griseb. - TIM tions in upland soils (Oswald & Ahart 7497: NEY. WORT. Locally common in vernally moist places SW'/. Sect. 30. Large meander plain of the creek ca. (Oswald & Ahart 7290: NEY. SWY. Sect. 30. Gravel 0.3 mi east of the lane. 29 April). Late Apr-May. along the creek ca. 0.4 mi east of the lane. 03 April). Trifo/ium campestre Schreb. - Hor CLOVER. Late Mar- Apr. (Microcala quadrangularis (Lam.) Found in gravel along the creek ca. 0. 1 mi east of the Griseb.J 1 lane (Oswald & Ahart 7504: NW'!. SW /. Sect. 30. 29 GERANIACEAE- G ERANIUM FAMILY April). Native to Eur. Late Apr-May. IT. procumbens Erodium botrys (Cav.) Berto!. - LONG-BEAKED L.. misapplied] STORK'S-BILL. Common in grassy upland throughout Trifolium ciliolatum Benth. - FOOTHILL CLOVER. 1 U1e reserve (Oswald & Ahart 7288: NW'!. SW /. Sect. Scattered plants in grassy upland (Oswald & Ahart 30. North side of creek ca. 0.2 mi east of the lane. 03 7476: NWY. SW'!. Sect. 30. Uplandjustsout11 ofthe April). Native to southern Eur. Mid Mar-Sep ... creek and east of t11e lane. 29 April). Late Apr-May. Erodium brachycarpum (Godr.) Thellung - Trifolium depauperatum Desv. var. depaupera SHORT-FRUlTED STORK'S-BILL. Grassy upland but less tum - Dw A.Rf COW BAG CLOVER. Locally common in common than E. botrys (Oswald & Ahart 7289: NWY. grassy upland (Oswald & Ahart 7281: NW'/. SW'/. SW 1I. Sect. 30. North side of creek ca. 0.2 mi east of Sect. 30. North side of the creek just east of t11e lane. the lane. 03 April). Mid Mar-Apr. [E. obtusiplicalum 03 April). Mid Mar- Apr. (Maire, Weiller & Wilczek) J.T.Howell) Trifolium depauperatum var. amplectens (Torr. & Erodium cicutarium (L.) L'Her. - RED-STEMMED A. Gray) McDennott - !NVOLUCRATE COWBAO CLOVER. FILAREE. Scattered in grassy upland but not as com Locally common in grassy upland (Oswald & Ahart mon as the preceding two species (not collected). Na 7280: North side of the creek near t11e lane. 03 April). tive to Eurasia. Mid Mar-Jun. Late Mar-Apr. [T amp/ectens Torr. & A.Gray] Trifo/ium dubium Sibth. - LiTILE HOP CLOVER. 8YDROPHYLLACEAE - WATERLEAF FAMJLY Loclized populations in grassy upland (Oswald & Nemophila pedunculata Douglas ex Benth. - 1 Ahart 7373: SE/. SE'!. Sect. 30. Near t11e pipeline ca. MEADOW NEMOPHILA. Localized populations in ver 1 0.1 mi north of the south boundary. 15 April). Native nally moist places (Oswald & Ahart 7287: NW /. SWY. to Eur. Mid Apr- Jun. Sect. 30. Gravel on edge of creek ca. 0.2 mi east of tl1e Trifo/ium hirtum All. - ROSE CLOVER. Found in lane. 03 April). Late Mar-Apr. grassy upland and along the creek (Oswald Ahart & HYPERICACEAE- ST. JOHN'S-WORT FAMILY 7503: NEY. SWY. Sect. 30. Large meander plain of the creek ca. 0.3 mi east oftl1e lane. 29 April). Native to Hypericum perforatum L. - KLAMA THWEED. Sev Eurasia, N. Afr. Mid Apr-May. eral colonies are located along Gyle Rd. (not col Trifolium microcephaium Pursh - SMALL-HEADED lected). Native to Eur. Early May-Jul. CLOVER. Co1mnon in grassy upland (Oswald & Ahart LAMIACEAE - MINT FAMILY 1 7477: NW /. SWY. Sect. 30. Just south of Ute creek and [Labiatae] east of the lane. 29 April). Mid Apr- May. Pogogyne zizyphoroides Bent11. - SACRAMENTO Trifolium variegatum Nutt - WHITE-TIPPED VALLEY POGOGYNE. Common on drying beds and CLOVER. Locally abundant in wet drainages, margins margins of vernal pools and in other vernally wet of U1e creek, ru1d at the farm pond (Oswald & Ahart places (Oswald & Ahart 7472: NWY. SW '!. Sect. 30. 9 Edge of the creek al the lane. 29 April). Early Apr Epilabium torreyi (S. Watson) P.Hoch & Raven - Jw1. TORREY'S SPIKE-PRIMROSE. Corrunon on drying mar Trichostema lanceolatum Bentl1. - VfNEOAR· gins ofvernal pools, margins of the creek, and in ver WEED. Apparently w1conunon on tl1e reserve--One nally moist upland (Oswald 7557: NE\4 SWY. Sect small group of plants was found on tl1e Lrack along the 30. Drainage on the large meander plain of the creek south boundary between the fann pond and the lane ca. 0.4 mi east oft11e lane. 13 May). Late Apr-JuJ. (not collected). Mid Aug-Sep ... [Boisduva/ia stricta (A. Gray) Greene) LYTHRACEAE- LOOSESTRIFE FAMILY PAPAYERACEAE- POPPY FAMILY Lythrum hyssopifolium L. - HYSSOP LOOSE· Eschschol.tia lobbii Greene - FRYfNOPANS. Com STRIFE. Common on margins of ponds and along the mon and widespread in grassy upland throughout the 1 creek (Oswald & Ahart 7648.1: SEY. SW /. Sect. 30. reserve (Oswald 7243: Along the lane near the creek. Edge of the farm pond. 27 May). Native to Eur. Early 20 March). Mid Mar-Apr. May-Jul. P LANTAGlNACEAE- PLANTAJN FAMILY MALVACEAE - MALLOW FAMILY Plantago coronopus L. - Ctrr-LEAVED PLANTAIN. Sidalcea hirsuta A.Gray - HAIRY CHECKERBLOOM. Occasional populations along the lane and on gravel Localized populations along vernally wet drainages bars along the creek (Oswald & Ahart 7473: NWY. 1 (Oswald 7553: SWY. SW'/. Sect. 30. Drainage soutl1 SW /. Sect. 30. Edge of the creek at tile lane. 29 side of the creek ca. 0.1 mi east of the lane. 13 May). April). Native to Eur. Late Apr-Jun. Early May. Plantago elongata Pursh - ELONGATE PLANTAIN. M OLLUGINACEAE- CARPET-WEED FAMILY Locally abundant on the drying beds of shallow vernal {Aizoaceae of some floras, in part] wetlands (Oswald & Ahart 7294: NEY. SW'/. Sect. 30. Depression on the north side of t11e creek ca. 0.4 mi Mo/Jugo verticil/ata L. - INDIAN-CHICKWEED. Lo east of the lane. 03 April). Mid Mar- Jun. [Includes cally common in sandy gravel along the creek and in ssp. pentasperma Bassett & var. californica (Greene) disturbed soil along the la.ne (Oswald & Ahart 7640: B.Boivin; P. bigelovii A.Gray ssp. californica 1 1 SE/. SW /. Sect. 30. Gravel bar of creek ca. 0.3 mi (Greene) Bassett; P. heterophylla Nutt., misapplied] east oft11e lane. 27 May). Native to tropical Amer. Plantago erecta E.Morris - ERECT PLANTAIN. Early May- Sep ... Common and widespread in grassy upland (Oswald & 1 0 NACRACEAE - EVENING- PRIMROSE FAMILY Ahart 7293: NEY. SW /. Seel 30. Flood plain of creek Camissonia gracilifl-ora (Hook. & Am.) Raven - at the meander ca. 0.4 mi east of tile lane. 03 April). HILL EVENING-PRIMROSE. Localized population on a Mid Mar-Apr. {P. hookeriana Fisch. & C.A.Mey. var. sandy gravel bar along tlie creek at the meander ca. californica (Greene) Poe] 0.4 mi east of the lane (Oswald & Ahart 7302: NEY. Plantago lanceo/ata L. - ENGLISH PLANTAIN. One 1 SW /. Sect. 30. 03 April). Late Mar-May. [Oenothera plant was fow1d in tl1e ditch along Gyle Rd. on 16 graciiiflora Hook. & Arn.) September (not collected). Native to Eur. Clarkia purpurea (Curtis) A.Nelson & J.F. Macbr. POLEMONIACEAE - PHLOX F AMILY ssp. quadrivulnera (Douglas) F.H.Lewis & M.R. Lewis- PURPLE CLARKIA. Common and widespread in Gilia tricolor Bentl1. ssp. tricolor - BIRD'S-EYE 1 OILIA. Scattered plants in grassy upland (not col grassy upland (Oswald & Ahart 7491: SE /. SWV. Sect 30. Near the cluster of vernal pools at tl1is location. 29 lected). Late Mar-Apr. April). Mid Apr- JWl. {C. quadrivulnera (Douglas) Linanthus bicolor (Nutt.) Greene - BICOWRED A.Nelson & J.F.Macbr.] LINANTHUS. Locally abw1dant on grassy slopes and 1 Epilobium brachycarpum C.Presl - TALL ANNUAL flats (Oswald & Ahart 7309: sw ;. SWV4 Sect. 30. WILLOWHERB. Scattered plants to locally common in Shallow wetland on the south side of the creek ca. 0.2 dry upland and along Gyle Rd. (not collected). Late mi east of the lane. Grayish plants (densely hairy) and Aug- Sep .... [E. paniculatum Nutt. ex Torr. & A.Gray greenish plants (moderately hairy) grow in dense including var. jucundum (A.Gray) Trel. & var. laevi stands side by side. 03 April). Late Mar-Apr. caule (Rydb.) Munz] Navarretia heterandra H.Mason -TEHAMA Epilobium cleistogamum (Curran) P.Hoch & Ra NAVARRETIA. Localized populations in dry grassy up 1 ven - CLEISTOGAMOUS SPIKE-PRIMROSE. In clay soil on land (Oswald 7554. l: SEY. SW /. Sect. 30. South side the dry bed of t11e largest of t11e vernal pools in t11e of the creek ca. 0.3 mi east of the lane. 13 May). Early cluster nort11 of the fa.rm pond (Oswald &Ahart 7649: May-JWl. CNPS List 4. SEY. SW'/. Sect. 30. 27 May). Early May- Jun. [Bois Navarretia leucocephala Benth. ssp. leucocephala duvalia c/eistogama Curran] - WHITE·FWWERED NAV ARRETIA. Locally abW1dant on drying margins of pools, drainages, and in gravel on 10 t.he bed of the creek (Oswald &Ahart 7490: SEY. drainage on the south side of the creek ca. O. l mi east SW1/,. Sect. 30. Pool in the cluster of pools at tl1i s lo of the lane (Oswald &Ahart 7358: SWV. SWV. Sect. cation. 29 April). Early Apr-Jw1. 30. Collected 15 April). [Anagallis minima (L.) Navarretia pubescens (Benth.) Hook. & Am. - Krause) DOWNY NAVARRETIA. Localized populations in grassy Dodecatheon clevelandii Greene ssp. patulum upland. (Oswald 7556: NEV. SW 1!. Sect. 30. On the (Greene) H.J.Thomps. - LoWLAND SHOOTINGSTAR. large meander plain of the creek ca. 0.4 mi east of the Common and widespread in grassy upland throughout lane. l3 May). Early May-Jun. the reserve (Oswald 7245: NW1i4 SWV. Sect 30. Near Navarretia tagetina Greene - MARIGOLD NAVAR the jw1ction of tlle creek and tlle lane. 20 March). Mid RETIA. Common and widespread in dry upland. (Os Mar-Apr. [D. patulum Greene] wald 7560: NWV. SWV. Sect. 30. North bank of the RANUNCULACEAE - BUTTERCUP FAMILY creek just east of the lane. 13 May). Late Apr-Jun. Phloxgracilis (Hook.) Greene - SLENDER PHLOX. Delphinium vari.egatum Torr. & A.Gray ssp. Locally abundant on the flood plain of the creek and in variegatum - ROY AL LARKSPUR. Scattered in grassy moist places in grassy upland. (Oswald 7241: Center upland (not collected). Mid Apr. SW'!. Sec. 30. Flood plain of the creek 0.25 mi east of Myosurus minimus L. - COMMON MOUSET AIL. Lo tlle lane. 20 March) Mid Mar- Apr. (Micros/eris calized populations on drying beds of pools and drain· 1 gracilis (Hook.) Greene] ages (Oswald &Ahart 7364: SWV. SW!. Sect. 30. Drainage on the soutll side of the creek ca. 0.1 mi east POLYGONACEAE - B UCKWHEAT FAMILY of the lane. 15 April). Mid Mar-Apr. Pofygonum arenastrum lord. ex Boreau - Ranunculus aquatilis var. hispidulus Drew - COMMON KNOTWEED. Moist places along the farm WATER BUTTERCUP. In standing water and later on wet pond and along tl1e creek (not collected). Early May soil of a deep pool near tlle pipeUne; also in tlle farm Sep ... [P. aviculare L. of Calif. authors is closely re pond (not collected). Mid Apr. lated but apparently undocumented in California ac ROSACEAE- ROSE FAMILY cording to Hickman in The Jepson Manual, p. 888.] Polygonum californicum Meisn. - CALIFORNIA Aphanes occidentalis (Nutt.) Rydb. - WESTERN KNOTWEED. Scattered plants in dry upland (not col LADY'S-MANTLE. Inconspicuous plant in grassy upland 1 lected). Late May-Jwi. (Oswald & Ahart 7306: NE !. SWV. Sect. 30. High Po/ygonum persicaria L. - LADY's- THUMB. Wet bank of creek at tlle meander ca. 0.3 mi east of tlle places along tlle creek (Oswald 7897: NEV. SWV. Sect. lane. 03 April). Late Mar-Apr. (Alchemil/a arvensis 30. Bed of the creek ca. 0.5 mi east of the lane. 27 (L.) Scop., A lchemilla occidentalis Nutt.] Jw1e). Native to Eur. Mid JW1- JuJ. RUBIACEAE- MADDER FAMILY Rumex crispus L. - CURLY DOCK. Vernally wet Galium parisiense L. - WALL BEDSTRA w. Local places in grassland (not collected). Native to Eurasia. ized populations in dry upland (Oswald 7558: NWV. Early May-Jwi. SWV. Sect. 30. North bank of the creek ca. 0.1 mi east Rumex pufcher L. - FIDDLE DOCK. Scattered of tlle lane. 13 May). Native to Medit. Early May-Jun. plants in upland fronting Gyle Rd. (Oswald 7561: NW 1!. NW1!. Sect. 30. Gyle Rd. near tlle lane. 13 SAXIFRACACEA.E - SAXIFRAGE FAMILY May). Native to Medit. Early May-Jun. Saxifraga californica Greene - CALIFORNIA PORTULACACEAE - P URSLANE FAMILY SAXJFRAGE. Grassy slopes near t11e creek (Oswald 7238: NW V.. SEY. Sect. 30. S0ut11 side of the creek ca. Calandrinia ciuata (Ruiz & Pav.) DC. - RED 0.7 mi east of the lane. 20 March). Mid Mar- Apr. MAIDS. Common in gravel on tlle edge of tlle creek (Oswald &Ahart 7295: NE 1!. SWV. Sect. 30. Creek SCROPHULARIACEAE - FICWORT FAMJLY ca. 0.4 mi east of tlle lane. 03 April). tvfid Mar-Apr. Antirrhinum cornutum Benth. - SPURRED SNAP (Includes var. menziesii (Hook.) J.F.Macbr.J DRAGON. Scattered plants on gravel bars along tlle Montiafontana L. ssp. chondrosperma (Fenzl) creek (Oswald 7895: NEY. SWV. Sect. 30. West end of Walters - wATER MONTIA. Locally abundant in shal the large meander plain ca. 0.3 mi east of tlle lane. 27 low water and later on wet soil of drainages and wet June). Late May-Jul. lands (Oswald 7237: SEY. SEY. Sect. 30. Shallow Castilleja attenuata (A.Gray) T.I.Chua.ng & drainage in the SE comer of tlle reserve. 20 March). Heckard - VALLEY-TASSELS . Scattered to locally Mid Mar- Apr. IM. verna Neck. ; M . minor C.C.Gmel.l common in grassy upland (Oswald & Ahart 7361: PR1MULACEAE- PRlMROSE FAMILY SWV. SWV. Sect. 30. Near a vernally flooded drainage on t11e south side of tlle creek ca. 0 .1 mi east of tlle Centunculus minimus L.- CHAFFWEED. Localized lane. 15 April). Early Apr. [Orthocarpus attenuatus population on the drying bed of a vernally flooded A.Gray) II 1 Gratiola ehracteata BenU1. - BRACTLESS HEDGE wald & Ahart 7643: NE /. SWY. Sect. 30. Edge of the HYSSOP. In moist soil on the drying beds of pools and creek ca. 0.4 mi east of the lane. 27 May). Late Mar. drainages and along the edge of the creek (Oswald & Juncus capffatus Weigel- LEAFY-BRACTED Ahart 7470: NW1/. SWV.. Sect. 30. Edge of the creek at DWARF RUSH. Occasional to local ly common in upland the lane. 29 April). Early Apr-May. (Oswald & Ahart 7359: SWY. SWY. Sect. 30. Margins Gratiola beterosepala Mason & Bacig. - BOGGS of a vernally flooded drainage on the south side of the LAKE HEDGE-HYSSOP. Large population on wet mud on creek ca. 0.1 mi east of the lane. 15 April). Native to the drying edge of a deep pool along U1e pipeline ca. Eurasia, N. Afr. Early Apr. 0.3 mi north of the south boundary (Oswald & Ahart Juncus oxymeris Engelm. - POINTED RUSH. Lo 7376: NEV. SE 1/. Sect. 30). Mid Apr. CNPS List IB, cally abundant in ditches along Gyle Rd. (Oswald CE. This plant is more conunon than previously 7562: NWY. NWV.. Sect. 30. 13 May). Mid May. thought. It is being considered for down-grading to Juncus uncialis Greene - INCH-HIGH RUSH. Com List 4 in the 6th edition of tJ1e Inventory. mon on the drying beds of vernally fl ooded pools and Triphysaria eriantha (Benth.) T.I.Chuang & drainages (Oswald & Ahart 7296: Pool on tJ1e meander Heckard ssp. eriantha - JOHNNYTUCK. Common and plain of the creek ca. 0.4 mi east of the lane. 03 April). widespread in grassy upland and on the margins of Late Apr. creek (Oswald 7242: Near the junction of the creek LILIACEAE- LILY FAMI LY 20 and the lane. March). Mid Mar-Apr. (Orthocarpus [Includes Amaryl/idaceaeJ erianthus Benth. var. erianthus) Verbascum blattaria L. - MOTH MULLEIN. One Allium amplectens Torr. - CLASPING ONION. Com plant in flower was found in the ditch along Gyle Rd. mon in grassy upland (Oswald & Ahart 7489: SEY. on 16 September (not collected). Native to Eurasia. SWY. Sect. 30. Near the large vernal pool in the clus Veronica p eregrina L. ssp. xalapensis (Humb., ter of pools north of the fann pond. 29 April). Mid Bonpl. & Kunth) Pennell - PURS LAN E SPEEDWELL. Lo Apr- May. cally abundant on the drying beds of vernally flooded Brodiaea californica Lindi. var. californica - pools and drainages (Oswald & Ahart 7292. I: NEY. CALIFORNIA BRODIAEA. Locally common in dry upland SWY. Sect. 30. Vernally flooded depression on tl1e me (not collected). The corollas of tJ1ese plants are pur ander plain of tJ1e creek ca. 0.4 mi east of the lane. 03 plish rather than pinkish to whitish as are often found April). Late Mar- Apr. in Northern California. Early May- Jun. Brodiaea coronaria (Salisb.) Engl. ssp. coronaria SOLANACEAE - NIGHTSHADE FAMILY - HARVEST BRODlAEA. Locally abundant on tl1e dry Physafis fanceifofia Nees - LANCE-LEAVED beds of larger vernal pools and on the dry bed of ilie 1 GROUND-CHERRY. Common in the ditch along Gyle creek (Oswald &Ahart 7650: SE/. SWY. Seel. 30. Bed Rd. (not collected). Native to S. Amer. In flower and of the largest pool in the cluster of pools north of the fruit on 16 Sep. farm pond. 27 May). Early May-Jun. Brodiaea elegans elegans - ZYGOPHYLLACEAE- CALTROP F AM ILY Hoover ssp. ELEGANT BRODIAEA. Scattered to locally abundant in dry upland Tribufus terrestris- Conunon on t11e edge ofGyle (not collected). Early May-Jun. Rd. (not collected). Native to Medit. Late Jun- Sep ... Brodiaea minor (Benth.) S. Watson - BLUESTARS. MONOCOT FLOWERING PLANTS Common in dry upland and on gravel bars (Oswald & Ahart 7493: SEY. SW 1h Sect. 30. Upland at tJ1e cluster CYPERACEAE - SEDGE FAMILY of vemaJ pools nortJ1 of ilie fann pond. 29 April). Mid Eleocharis acicularis (L.) Roem. & Schult. var. Apr-Jun. (Includes var. nana (Hoover) Hoover] acicularis- NEEDLE·SPlKE-RUSH. Drying beds of ver Calochortus luteus Douglas ex Lindi. - YELLOW nal pools and vernally wet drainages (not collected). MARIPOSA-LlLY. Scattered in grassy upland (Oswald & Mid Apr. Ahart 7492: SEY. SWV.. Sect. 30. At tJ1e cluster of ver Eleocharis macrostachya Britton ex Small - PALE nal pools north of the fann pond. 29 April). Occa SPLKE-RUSH. Locally common emergent in pools, sional plants with cream-colored petaJs similar to C. ditches, and drainages, becoming terrestrial after dry superbus are found, but t11e glands correspond to those down (Oswald & Ahart 7644 : NEY. SEY. Sect. 30. Bed of C. luteus. Mid Apr-May. ofa deeper pool along tJ1e pipeline ca. 0.3 mi nort11 of Chlorogalum angustifolium Kellogg- NARROW tJ1e south boundary. 27 May). Mid Mar. [£. palustris LEAVED SOAP-PLANT. Common in grassy upland (Os 1 1 (L.) Roem. & Schult.) wald & Ahart 7647: SE /. SE /.i Sect. 30. Along tJ1e JUNCACEAE - Rusu F,\M[LY pipeline ca. 0.1 mi north of ilie south boundary. 27 May). Early May-Jun. Juncus bufonius L. var. hufonius - COMMON TOAD RUSH. Common in vemaJJy moist upland (Os- 12 Dichelostemma capitatum A. W. Wood ssp. capi nor!Jl oftJ1e creek. 15 April). Native to soutJ1ern & tatum - BLUEDICKS. Conunon in grassy upland western Eur. Mid Mar. throughoul lhe reserve (Oswald 7244: Near t11ejunc Bromus diandrus RotJ1 - RIPGUT BROME. Com tion oft11e creek and tJ1e lane. 20 March). Mid Mar mon in iliicker soils in upland (Oswald & Ahart 7486: Apr. [D. pulchellum (Salisb.) A.Heller, D. lacuna SE 1!. SWV. Sect. 30. Near tJ1e farm pond. 29 April). vernalis L. W.Lenz, Brodiaea capita/a Benth., Brodi Native to Eur. Late Apr. (B. rigidus Roth including aea pulchella (Salisb.) Greene] var. gussonei (Part.) Coss. & Durieu, misapplied] Dichelostemma multi/1.orum (Benth.) A.Heller - Bromus hordeaceus L. - SOFT CHESS. Common ROUND-TOOTHED OOKOW. Locally abundant in deeper in upland (not collected). Native to Eurasia. Early Apr. soils of mounds in upland (not collecled). Mid Apr (B. mo/lis L., B. racemosus L., B. scoparius L.) May. (Brodiaea multiflora Benili.] Bromus madritensis ssp. rubens (L.) Husn. - Triteleia hyacinthina (Lindi.) Greene (typicaJ RED BROME. Localized popuJations in grassy upland 1 form) - WILD HYACINTH. Common along the creek, in (Oswald & Ahart 7501: NE/. SWV. Sect. 30. On the vernally wet drainages and pools, and in deeper up meander plain of the creek ca. 0.3 mi east oft11e lane. land soils (not collected). Morphologically distinct 29 April). Native to Eur. Early Apr. [B. rubens L.) from an earlier blooming upland form segregated be Crypsis schoenoides (L.) Lam. - SwMtP low. Late Apr-May. (Brodiaea hyacinthina (Lindi.) PRICKLEGRASS. Dry beds of deeper vernal pools and Baker] ponds (Oswald 8244: SEY. SW 1/. Sect. 30. Dry bed of Triteleia hyacinthina (Lindt.) Greene (upland fann pond. 22 August). Native to Eur. Mid Aug. fonn) - WILD HYACINTH. In grassy upland, often more (Heleochloa schoenoides (L.) Host) conunon on mounds (not collected). Late Mar-Apr. Cynodon dactylon (L.) Pers. - BERMUDA-GRASS. (This form is mentioned in Munz but not given tmco Localized popuJations on gravel bars along tl1e creek nomic recognition.] and in the ditch along Gyle Rd. (Oswald &Ahart POACEAE - GRASS FAMILY 7638: SWV. SWV. Sect. 30. Bed of creek ca. 0.2 mi [Gramineae] east of t11e lane. 27 May). Native to Afr. Late Apr. Dactylis glomerata L. - ORCHARDGR.ASS. Seeded Agrostis hendersonii Hitchc. - HENDERSON'S along tl1e pipeline (not collected). Native to Eurasia. BENTGR.ASS. Localized popuJations in vernally wet Late May. drainages and in gravelly soil along the edge of the Deschampsia danthonioides (Trin.) Munro - AN creek (Oswald & Ahart 7468: NW'.4 SWY. Sect. 30. NUAL HAIRGRASS. Drying beds of pools and drainages 1 Edge of the creek at tJ1e lane. 29 April). The identifi (Oswald &Ahart 7469: NWY. SW /., Sect. 30. Edge of cation of this grass is tentative-the lenunas are 2+ tJ1e creek at tJ1e lane. 29 April). Mid Apr. mm long and the awn is < 8 mm long, bot11 measure Echinoch/oa crus-galli (L.) P.Beauv. - BARN- ments which could apply to A. microphylla. The lem YARD GRASS. Growing in tlle ditch fronting Gyle Rd. mas are onJy minutely aristate rat11er than being con and on the drying bed of the creek (not collected). Na spicuously awned. Late Apr. CNPS List 3. tive to Eurasia, Afr. Late JuJ. [Includes var. zelayensis Aira caryophyllea L .. - SILVER EUROPEAN (Humb., Bonpl. & Kunth) Hitchc.] llAIRGR.ASS. Common and widespread in upland (not Elymus multisetus (J.G.Sm.) Burtt Davy- BIG collected). Native to Eur. Late Mar-Apr. SQUIRRELTAIL. Unconunon tufted grass in upland on Alopecurus saccatus Vasey -VERNAL POOL FOX tJ1e soutll bank of t11e creek ca. 0.2 mi east of the lane TAIL. Conunon on drying beds of vernal pools (not (Oswald & Ahart 7639: SWV. SWY. Sect. 30. 27 May). collected). Mid Apr. [A. howe/lii Vasey) Late Apr. (Silanionjubatum J.G.Sm.] Aristida oligantha Michx. - OLDFIELD THREE Gastridium ventricosum (Gouan) Schinz & AWN. Conunon and widespread in dry upland, along Thell. - NITGRASS. Occasional grass in upland (Os roads, on tJ1e dry beds of vernal wetlands and along wald & Ahart 7478: SWY. SWV. Sect. 30. AJong a the creek (Oswald 8243: NW'!. SWY. Sect 30. Bed of drainage flowing in a northeasterly direction from U1e the creek at the lane. 22 August). Mid Jul. SW corner of tlie reserve. 29 April). Native to Eur. Avena barbata Pott ex Link - SLENDER WILD OAT. Late Apr. Common in deeper soils in upland (not collected). Na Hordeum marinum Huds. ssp. gussoneanum tive to southern Eu r. Mid Apr. (Parl.) Thell. - MEDITERRANEAN BARLEY. Localized Avena fatua L. - WILD OAT. Common in weedy popuJations in grassy upland and on the margins of upland fronting Gyle Rd. (not colJected). Native to vernal wetlands (Oswald & Ahart 7648: SE'/4 SEY4 Eur. Late Apr. Sect. 30. Pool along tJ1e pi peline ca. 0.1 mi nor!Jl of Briza minor L. - LESSER QUAKING-GR.ASS. LocaJly tJ1e sout11 boundary. 27 May). Native to Eur. Mid Apr. abundant in moist places in grassy upland (Oswald & (H. geniculatum· All., H. gussoneanum Par!., H hys Ahart 7383: NWV. SWV. Sect. 30. Near t11e lane just trix RothJ 13 Hordeum murinum ssp. leporinum (Link) Ar Scribneria bolanderi (Thurb.) Hack. - SCRIB cang. - HA.RE WALL BARLEY. Found in grassy upland NER'S-GRASS. Locally common in vernally moist up and in disturbed places (Oswald & Ahart 7499: NE 1!. land (Oswald &Ahart 7384: NWV.. SWY. Sect. 30. SWV.. Sect. 30. On the meander plain of the creek ca. Near the lane just north of the creek. 15 April). Early 0.3 mi east of the creek. 29 April). Native to Eur. Apr. Early Apr. (H. leporinum Link, H. murinum L.J Setaria sphacelata (Schum.) Moss - AFRlcAN Koeleria phleoides (Viii.) Pers. - BRISTLY BRISTLEGRASS. Extensive colonies grow in the ditch KOELER'S-GRASS. Growing in vernally moist places fronting Gyle Rd. (not collected). Native to Afr. Late (Oswald &Ahart 7474: NW1!. SWY. Sect. 30. Edge of Jun. the creek at the lane. 29 April). Native to Med.it. Late Sorghum halepense (L.) Pers. - JoHNSONGRASS. Apr. [K gerardii (Viii.) Pers.] Locally abundant in tlle ditch fronting Gyle Rd. (not Lolium multiflorum Lam. - ANNUALRYEGRASS. collected). Native to Med.it. Mid Aug. Common in gravelly upland (Oswald &Ahart 7475 Taeniatherum caput-medusae (L.) Nevski - NW'/4 SWY. Sect. 30. Edge of the creek at the lane. 29 MEDUSA-HEAD. Widespread in upland (Oswald & April). Native to Eur. Late Apr. Ahart 747 / : NWY. SWY. Sect. 30. Near the creek at Lolium temulentum L. - DARNEL. Sometimes U1e lane. 29 April). Native to Eur. Late Apr. IElymus growing with L. mu//ijlorum (Oswald 7559 : NWY. caput-medusae L.] SWY. Sect. 30. On the north bank of U1e creek just east Vulpia microstachys var. ciliata (Beal) Lonard & ofU1e lane. l3 May). Native to Medit. Late Apr. Gould - FRINGED FESCUE. Localized populations in 1 Nassella cernua (Stebbins & A.Love) Barkworth upland (Oswald & Ahart 7382.2: NE ;. SW'/4 Sect. 31. NODDfNG NEEDLEGRASS. Uncommon bunch grass On tJ1e large meander plain of the creek ca. 0.3 mi east growing on a high bank along the northwest side of of the lane. 15 April). Mid Apr. [Festuca eastwoodiae tJ1e mea11dcr plain of tJ1e creek ca. 0.3 mi east of the Piper, F grayi (Abrams) Piper] lane (Oswald & Ahart 7641: NE'/4 SW 1!. Sect. 30. 27 Vulpia microstachys var. confusa (Piper) Lonard May). Late Apr. IStipa cernua Stebbins & A.Love) & Gould - HAIRY-LEAVED FESCUE. Common in upland Panicum capillare L. - WITCHGRASS. Scattered (not collected). Late Mar. [Festuca confusa Piper, F. plants were found in the ditch along Gyle Rd. on 16 tracyi Hitchc. J September (not collected). Vulpia microstachys var. pauciflora (Scribn. ex Panicum dichotomillorum Michx. - SMOOTH BeaJ) Lonard & Gould - FEW-FLOWERED FESCUE. Lo WITCHGRASS. Conunon in the ditch along Gyle Rd. on cally abwidant in grassy upland (Oswald & Ahart 16 September (not collected). Native to tJ1e eastern 7367: SW'!. SWV. Sect. 30. Near a vernally flooded U.S. drainage on the soutll side of the creek ca. 0.1 mi east Paspalum dilatatum Poir. - DALLISGRASS. One of the lane. 15 April). Mid Apr. [Festucapacijica plant noted in tl1e ditch along Gyle Rd. on 16 Septem Piper, F rejlexa Buckl.] ber (not collected). Native to S. Amer. Vulpia myuros var. hirsuta (Hack.) Asch. & Poa annua L. - ANNUAL BLUEGRASS. Common in Graebn. - FOXTAIL FESCUE. Found in gravelly and moist upland and on tJ1e margins of drainages and de grassy places (Oswald &Ahart 7380: NEY. SWY. Sect. pressions (not collected). Native to Eur. Late Mar. 30. Meander plain of the creek ca. 0.3 mi east of the Poa bulbosa L. - BULBOUS BLUEGRASS. Localized lane. 15 April). Native to Eur. Mid Apr. [Festuca populations in grassy upland ruid along the creek (Os megalura Nutt.] wald & Ahart 7301: NEY. SW'!. Sect. 30. Along the POTAMOGETONACEAE - PONDWEED FAMILY edge of tl1e creek ca. 0.4 mi east of the lane. 03 April). Native to Eur. Mid Mar. Potamogeton diversifolius Raf. - DIVERSE-LEAVED Polypogon mariiimus Willd. - MEDITERRANEAN PONDWEED. Locally abw1dant in the fann pond on the BEARDGRASS. Common in moist gravel along the creek sout11 boundary (Oswald & Ahart 7483). In fruit late (Oswald & Ahart 7498: NEY. SW 1!. Sect. 30. Meander Apr. plain of the creek ca. 0.3 mi east of the lane. 29 April). Native to MediL Eur. and Afr. Mid Apr. 14 INDEX - A- -C - Delphinium, 11 Grass, Needle, 14 Deschampsia, 13 Grass, Nit, 13 Achyrachaena. 4 Calandrinia, 11 Dichelostemma, 13 Grass, Orchard. 13 Agrostis, 13 Callilrichaceae, 7 Ditch-grass family, 14 Grass, Prickle, 13 Aira, 13 Callitriche, 7 Dock, 11 Grass, Rye, 13 Aizoaceae, 10 Calochortus, 12 Dodder family, 8 Grass, Scribner's, 14 Alchemilla occidentalis, 11 Caltrop family, 12 Dodecatheon. 11 Grass-pink, 7 Allium, 12 Camissonia, 10 Duwningia, 7 Gratiola, 12 Alopecurus, 13 Campanulaceae, 7 Ground-cherry, 12 Amaranth Family, 4 Capsella, 6 -E- Amaranthaceae, 4 Cardamine, 6 -H- Echinochloa, 13 Amaranthus, 4 Carpet-weed family, 10 Elatinaceae, 8 Hairgrass, 13 Amsinckia, 6 Carrot family, 4 Elatine, 8 Hareleaf, 5 Antii-rhinum, 11 Caryophyllaceae, 7 Eleocharis, 12 Hedge-hyssop, 12 Aphanes, 11 Castilleja, 11 Elymus, 13 Heleochloa schoenoides, 13 Apiaceae, 4 Cat's-ear, 5 Elymus caput-medusae, Heliotrope, 6 Centaurea, 4 14 Arenaria spp., 7 Heliotropium, 6 Centaurium, 9 Epilobium, 10 Aristida, 13 Hemizonia, 5 Centaury, 9 Eremocarpus, 8 Asclepiadaceae, 4 Hesperevax, 5 Cenltmculus, 11 Erodium, 9 Asclepias, 4 Hordeum, 13 Cerastium, 7 Eryngium, 4 Aster family, 4 Horseweed, 4 Asteraceae, 4 Chaffweed, 11 Eschscholzia, I 0 Euphorbia Hyacinth, Wild, 13 As/raga/us, 8 Chamaosyce, 8 spp., 8 Euphorbiaceae, 8 Hydrophyllaceae, 9 Athysanus, 6 Chamomilla, 4 Hypericaceae, 9 Charlock, Jointed, 6 Evax, 5 Avena, 13 Hypen·cum, 9 Checkerbloom, I0 Evax acaulis, 5 Hypochoeris, 5 - B- Chess, 13 Evening-primrose, I 0 Evening-primrose family, 10 Chickweed, 7 - I - Barley, 13 Chickweed, Indian, 10 Barnyard grass, 13 Chicory, 4 - F- Indian-chickweed, I 0 Beardgrass, 14 Chlorogalum, 12 Fabaceae, 8 Isoetaeeae, 4 Bedstraw, 11 Cicendia, 9 lsoetes, 4 Bellflower family, 7 Fescue, 14 Cichorium , 4 Fiddleneck, 6 Bentgrass, 13 C/arkia, 10 - J - Bennuda-grass, 13 Figwort family, 11 Clover, 9 Bindweed, 7 Fi/ago, 4 Johnnytuck, 12 Cocklebur, 6 Bittercress, 6 Filaree, 9 Johnsoograss, 14 Compositae, 4 Blennospcnna, 4 Foxtai l. 13 Juncaceae, 12 Composite family, 4 Blow-wives, 4 Fryingpans, I 0 Juncus, 12 Convolvulaceae, 7 Bluecup, 7 Fumitory family, 10 Convolvulus, 7 Bl uedicks, 13 -K- Conyza, 4 Bluegrass, 14 - G- Cottonweed, 5 K.lamathweed, 9 Bluest.ars, 12 Coyote-thistle, 4 Ga/ium , 11 K11otweed, 11 Boisduvalia spp., 10 Gastridium, 13 Crassula, 8 Koeler's-grass, 14 Borage family, 6 Crassulaceae, 8 Gentian Fa.m.ily, 9 Koeleria, 14 Boraginaceae, 6 Gentianaceae, 9 Cruciferae, 6 Koh/rauschia veilltina, 7 Brassicaceae, 6 Geran.iaceae, 9 Crypsis, 13 Bristlegrass, 14 Geranium family, 9 Cryptantha, 6 - L- Briza, 13 Gilia, 10 Cudweed, 4 Brodiaea, 12, 13 Githopsis, 7 Labiatae, 9 Brome, 13 Cusc11ta, 8 Lactuca, 5 Cuscutaceae, 8 Gnaphalium, 4 Bromus, 13 Goldtields, 5 Lady's-mantle, 11 Cynodon, 13 Buckwheat family, 11 Grrunineae, 13 Lady's-thumb, 11 Cyperaceae, 12 Bur-clover, 9 Grass family, 13 Lagophylla, 5 Burweed, 5 -D- Grass, Barnyard, 13 Lamiaceae, 9 Buttercup, 11 Grass, Bennuda, 13 Larkspur, 11 Buttercup family, 11 Dactylis, 13 Grass, Blue, 14 Lasthenia, 5 Dallisgrass, 14 Grass, Hair, 13 lAyia, 5 Darnel, 13 Grass. Johnson, 14 Legume family, 8 Grass, Koeler's, 13 Leguminosae, 8 15 Leontodon, 5 Old-man-in-the-spring, 5 - R- Stork's-bill, 9 Lepidium, 6 Onagraceae, 10 Swtflower family, 4 Lessingia, 5 Onion, 12 Ranunculaceae, I I Lettuce, Wi ld, S Ookow, 12 Ranw1culus, 11 -T- Liliaceae, 12 Orchardgrass, l3 Raphanus, 7 Lily family, 12 Orthocarpus attenuatus, 11 Redmaicls, 11 Taeniatherum, 14 Thistle, Sow, 6 Linanthus, I 0 Orthocarpus erianthus, 12 Rosaceae, I I Logfia ga/lica, 4 Rose family, 11 Thistle. Star, 4 lolium, 14 - P- Rubiaceae, 11 Tiu-ee-awn, 13 lomatium,4 Rume.r, 11 Thysanocarpus, 7 Panicum, 14 Loosestrife family, 10 Ruppiaceae, 14 Tidytips, S Papaveraceae, JO Lotus, 8 Rush, 12 Tillaea spp., 7 Parorrychia, 7 Lupine, 8 Rush family, 12 Timwort, 9 Paspalum, 14 Lupinus, 8 Ryegrass, 14 Tribulus, 12 Pearlwort, 7 Lythraceae, I 0 Trichostema, 10 Pectocarya, 6 Lythrum, 10 -S - Trifolium, 9 Pepper-grass, 6 Triphysaria, 12 - M- Petrorhagia, 7 Sagina, 7 Trite/eia, 13 Phlox, 11 Sanclspurry, 7 Tumbleweed, 4 Madder fami ly, 11 Phlox family, 10 Saudwort, 7 Tunica prolifera, 7 Mallow family, 10 Physa/is, 12 Saxifraga, 11 Turkey-mullein, 8 Malvaceae, I 0 Pigmyweed, 8 Sa xifragaceae, 11 Mariposa-lily, 12 Pillwort, 4 Saxifrage family, 11 - U- Marsilea family, 4 Pi/ularia, 4 Scribner's-grass, 14 Marsileaceae, 4 Pineapple-weed, 4 Scribneria, 14 Umbe/liferae, 4 Matricaria matricarioides, 4 Pink family, 7 Scrophulariaceae, 11 Medicago, 9 Plagiobothrys, 6 Sedge family, 12 -V- Medusa-head, 14 Plantagi.naceae, IO Senecio, 5 Valley-tassels, 11 Micropus, 5 Plantago, I0 Setaria, 14 Veronica, 12 Microseris, 5 Plantain. I 0 Shepherd's-purse, 6 Vetch, 9 Microsteris gracilis, 11 Plantain family, 10 Shooti.ngstar, 11 Vicia, 9 Milk-veLch, 8 Poa, 14 Sida/cea, I0 Vinegar-weed, 9 Milkweed,4 Poaceae, 13 Silene, 7 Vulpia, 14 Mi lkweed family, 4 I'ogogyne, 9 Sitanion jubatum, 13 MinL family, 9 Polemoniaceae, I0 Snapdragon., 11 -W - Minuartia, 7 Polygonaceae, 11 Soap-plant, 12 Molluginaceae, I0 Polygonum, 11 Solanaceae, 12 Waterleaf family, 9 Mol/ugo, 10 Po/ypogon, 14 Saliva, 6 Water-starwor1, 7 Mantia. 11 Pondweed, 14 Sonchus, 6 Water-starwort family, 7 Morning-glory fami ly, 7 Pondweed family, 14 Sorghum, 14 Waterwort, 8 Mousetail, I I Popcorn-flower, 6 Sow-thlstle, 6 Waterwort fami ly, 8 Mustard family, 6 Poppy family, I0 Speedwell, 12 Wi.ndmi 11-p ink, 7 Myosurus, I I Portulacaceae, I I Spergularia, 7 Witcbgrass, 14 Potamogeton, 14 Spike-primrose, IO Woolly-marbles, 5 -N- Potamogetonaceae. 14 Spike-rush. J 2 Pricklegrass, I J Spikeweed, 5 -X- Nai lwort, 7 Primrose family, 11 Spokepod, 7 Nossella, 14 Xanthium, 6 Prirnulacene, 11 Spurge, 8 Na van·e11a, 10 Psi locarpl111s, 5 Spurge family, 8 Needlegrass, 14 - Y- Purs lane fami Iy, I I Squirreltail, 13 Nemophila, 9 St. John's-wort family, 9 Yellow-carpel, 4 Nightshade family, 12 -Q- Star-thlslle, 4 Nitgrass, 13 Starwort, 7 - Z- Quaking-grass, 13 Stellaria, 7 Quill wort, 4 Zygophyllaceae, 12 -0- Stipa cem ua, 14 Quill wort family, 4 Oal, 13 Stonecrop fami ly, 8 16