FLORA OF THE APPLETON-WHITIELL RESEARCH RANCH, NORTHEASTERN SANTA CRUZ COUNTY, J .: ,..li_TEVDl P. MCLAUGHLIN~Udversity of Arizona, Office of Arid Lands Studies, Tucson AZ 85721, 'fRikX L. eEisEP. I IHi ~ of Anzona, School of Renewable Natural Resources, Tucson AZ 85721, and JANICE E. BO\VERS, U.S. Geological Survey,1675 W. Anklam Road, Tucson AZ 85745 ABSTRACT The Appleton-Whittell Research Ranch, operated by the National Audubon Society, covers 3160 ha in northeastern Santa Cruz County. Elevations range from 1417 m to r570 m. The known vascular flora comprises 81 families, 290 genera, 4 73 native species, and 38 exotic species. One species, Lygodesmia ramosissima, is new to the flora of Arizona. Floristic affinities, based on a comparison with 40 other local floras from the western , 32 local floras from , and 40 floras from the central United States, are strongest towards the southeast into and .

INTRODUCTION of the Research Ranch; from west to east thev are Post Canyon, O'Donnell Canyon, and Turkey The Appleton-Whin~ll Research Ranch Creek. The only other major watershed is Lyle occupies 3160 ha southeast of El~in in north­ Canyon in the southeastern comer of the Research eastern Santa Cruz County (31 ° 35 N, 110° 30' Ranch; the northwestern corner is in the Vaughn W). A cooperative partnership operated by the Canvon watershed. - National Audubon Society, the Research Ranch \reget2tion ofthe Research Ranch is primarily includes private land as well as lands o..,.,11ed by grassland in the northern part and along ridge the Coronado National Forest and the Bureau of crests and mesa tops, and Madrean evergreen oak Land Management (Bock .and Bock 2000). The woodlands in the higher elevations of the southern Research Ranch was established m 1967 when the part and in canyon bottoms. The grasslands are Appleton family removed cattle from their dominated by sideoats grama (Bouteloua property? the Elgin ~ereford Ranch, with the goal cunipendula), blue grama (B. gracilis), and plains of creatmo an environmental preserve (Bahre love.grass (Eragrostis intermedu:z), except on 1977, Boe~ and Bock 2000). The Appletons sold cert.am mesa tops where Boer's lovegrass the property to the National Audubon Society in (Eragrostis curvula var. con(erta) was planted in 1980. The current objectives of the Research the 1940s and 1950s (Bahre 1977). Riparian Ranch are to maintain a wildlife sanctuary, host forests of ash (Fra.xinus velutina), sycamore and conduct ecological research, and provide (Platanus wrightii), willows (Salix gooddingii, S. education about sustainable land management taxifolia, S. laevigata, and S. exigua), and (Bock and Bock 1986b). Projects have included cottonwood (Populus fremoncii) occur in the major ecology of grassland birds and insects, vegetation drainages. Permanent water provides important dvnam1cs, and exotic species. Here, we provide wetland habitats in Post Canyon, O'Donnell tlie first comorehensive checklist of the vascular Canyon, and at Finley Tank. The lower part of the of the Research Ranch. Turkey Creek drainage contains one of the best The !!raSslands at the Research Ranch are exampl_es o_f sacaton (Sporobo{us wrig_htii) flats describecfby Bock and Bock (2000) as "Madrean remammg m southeastern Anzona (Hock and Mixed-Grass Prairie," implying a floristic relation­ Bock 1986a). ship with the grasslands of northern Mexico. Sellers et al. ( 1985) provide climatic data from However, the area is mapped as "Plains and Great four weather stations in eastern Santa Cruz County Basin Grasslands" by Bro\,1,1) and Lowe (1994), and northwestern Cochise County close to the implying a closer relationship with grasslands of Research Ranch and at comparable elevations: the central United States, Great Basin, and Elgin (1494 m, precipitation only), Canelo Colorado Plateau. Thus, a second objective of this (1)28 m), Fort Huachuca (1422 m), and San paper is provide an evaluation of the floristic Rafael Ranch (1490 m). Monthly precipitation affinities of the plants occurring in the flora of the data from the Research Ranch from 1968- 1997 are Research Ranch. available on their website (www.audubon.org/ STUDY AREA local/sanctuary/appleton/). These stations have very similar climates (Fig. 2). The area has a Elevation increases across the Research Ranch "monsoonal" climate with a pronounced peak in (Fig. I) from north to south, ranging from 14 17 m monthly precipitation in July and August along the northern boundarv where the O'Donnell following a period ofminimum rainfall from April Canyon drainage enters the Babocomari Land through June. The winter .ainy season (December­ Grant, to 154 l m at Bald Hill in the northwestern February) has about one-fourth to one-third of the corner and to 1570 m on a hilltop near the rainfall received during the summer rainy season. southern boundary on the west side · of Lyle Mean annual precipitation is somewhat higher at Canvon. Most of the area lies between 1430 and the Research Ranch Headquarters (433 mm), San 1536 m . Three convergent watersheds drain most Rafael Ranch ( 441 mm) and Canelo ( 453 mm)

MCLAUGHLIN, S. P.. E. L. GEIGER. AND J.E. BOWERS. A FLORA OF THE A0 PLETON-WHITIEL1 RESEARCH RANCH, NORiHEASERN SANTA CRUZ COUNTY, AR12CNA. JOURNAL Of THE ARJZONA- ACACEl.(YOF SC:ENCE33(2):113-131. © 2001 SlcvEN P. Mcl.AUGHUN, ERIKA, L. GEJGER, ANO JANiCE E. S0wERS. 114 FLORA OF THE APPLETON-WH/TTEil RESEARCH RANCH +Mcl.AUGUN, GEIGER, AND BOWERS

The ApplBton-Whittell Research Ranch

\-. :\·-.,~\n Bad Hil • '

N

+ .• Tt1: Naior.i AtdiJon Society .... -.. A~Vmttsll Researui Rm , ...... ·.. ~ ...... · Sm Cruz C!l.llty. Arizona ...... E~19S8 ......

D.8 0 0.8

Figure I. Map ofthe Appleton-WhiUell Research Ranch, with index map showing its location in nonheastern Santa Cruz County, Arizona. than at Fort Huachuca (391 mm) and Elgin (381), Fort Huachuca than at Canelo, suggesting a reflecting a pattern of increasing summer precip- gradient ofdecreasing temperature with mcreasmg itation from north to south across the Research elevation across the Research Ranch. Ranch. Mean monthly maximum temperatures are Soils of the Research Ranch are described in similar at all locations (Fig. 2); mean monthly the soil survey for Santa Cruz County (Richardson minimum temperatures are about 5°C higher at et al. 1979). Silt and clay loams oftfie Pima series FLORA OF THE APPLETON-WHm c:u. RESEARCH RANCH + Mcl.AUGUN, G&GER, AND Bov. _.s 115

~o recent revisions in the following taxa: pterido­ 35 Md.:,n M:lXirnum Te,npe,atUf~ phytes and gymnosperms (Flora or?\/orth America Committee 1993); Asclepiadaceae (Sundell 1994), 30 Convolvulaceae (Austin 1998), Cylindropuntia 2!:> (Pinkava 1999), Gentianaceae (Mason 1998), E 2\l Loasaceae (Christy 1998), (Dempster ~ ,~ and Terrell 1995), Populus (Eckenwalder 1992), ;.; Salix (Argus 1995), and Viscaceae (Hawksworth "'Q. ,o ....E and Wiensl994). Where we use names reflecting t- 5 recent taxonomic revisions in other taxa, the 0 names found in Kearney and Peebles (l 960) are !, provided in brackets following the names we have .,o accepted. . J F M A M J J A S O N 0 All native species in the flora were classified ,~o into floristic elements based on an analysis oftheir occurrence in local floras from the western United ,,o States (McLaughlin 1992). Unpublished data bases of species distributions in 32 local floras E 100 from Mexico and 40 local floras from the central E.. United States were used to characterize the C 80 .Q distributions and range siz.es of all species in flora ~ ·c. 60 of the Research Ranch m the western United ·.:;., States, Mexico, and the central Cnited States. The ii:. 40 extent of distribution of a species (range size) within a region can be estimated as its percentage ,o incidence (number of floras in which the species is recorded) in a sample of local floras from that FMAMJJASONO region. Many local floras for different parts of Mexico have been published in recent years, and althou,g,h ~e coverage is still sparse in comparison Figure 2. Climatic records from the Appleton-Whittell to the unned States, there are now enough to give Research Ranch and nearby stations: Canelo Hills ['vJ, a preliminary indication of how species founo in Elgin, precipitation only [OJ, Fort Huachuca [OJ, San the United States are d.istributea south of the Rafael Ranch [OJ, and the Research Ranch. international border. Similarities (Otsuka Index, precipitation only [•J. Simpson 1980) between each of these floras and the flora of the Research Ranch were calculated occur along the floodplain of O 'Donnell Canvon and mapped to illustrate the geographic affinities in the northeastern quarter ofthe Research Ranch; of the flora. References for local floras used in this these soils support dense stands of sacaton. analysis are available from the senior author. Canyon bottoms above the confluence of Post Canyon, O'Donnell Can_yon, and Turkev Creek have sand).'. loams in the Grabe-Comoro complex; RESULTS AND DISCUSSION similar sods are also found in Lyle Canyon. Soils on slopes adjacent to the maJor drainages are The flora of the Research Ranch includes 81 mostly gravelly clay to sandy loams of the families, 290 genera, 473 native species, and 38 Bernardino-Hathaway and Hathawav associations. exotic species. Exotics account for 7.4 % of the Mesa tops between drainages are mapped as White total flora. The largest families are the composites House gravelly loams. Soils on the higher hills steraceae), ~ses (Poaceae), and legumes and slopes on the southern part of the 'Research abaceae ), which together account for nearly half ~ 5. 7%) of the total flora (Table I). Over half of Ranch are shallow cobbly sandy loams of the the exotic species are grasses. The majority of the Faraway-Rock outcrop complex. families in the flora are represented by three or METHODS fewer species (Table 2), a oattern which probably is typical for local floras. 'The largest genera are collections were made from all habitats Dalea (12 spp.),Bouteloua (9 spp.), Mufzlenbergia at the Research Ranch from September 1997 (8 spp.), Asclepias (7 spp.). Chamaesyce (7 spp.), through October 1999. Voucher specimens have and Baccharis, Astragalus, Aristida, and been deposited in a herbariurn maintained at the Eragrostis, each with 6 species. Research Ranch, and at the University of Arizona A new species for the flora of A.:izona, (ARIZ). All specimens in the Research Ranch Lygodesmia ramossima, was found during this herbanum were examined and verified. Other than srudy. This species is sparsely distributed from ourselves, major collectors have included Thomas west to (Correll and Johnston Elias and his students and collaborators, who 1970). Several plants were seen only in grassland made several trips to the Research Ranch in the vegetation on markedly calcar~ous Bernardino­ middle 1980s. Nomenclature in the checklist Hathaway soils in the northeastern portion of the follows Kearney and Peebles ( 1960), except for Research Ranch. 116 FLORA OF THE APPLETON-WHITTELL RESEARCH RJ..NCH + MCI.AUGUN, GEIGE.'<, AND BOWERS

Table I. Largest families in the flora ofthe A.ppleton­ Whittell Research Ranch. Table l. Distribution offamily sizes in the flora ofthe App/eton-'f'lhitte/1 Research Ranch.

Native Exotic Total Family Genera species species species Species per family Number of families 54 91 4 94 31 Poaceae 40 65 19 84 2-3 20 Fabaceae 24 51 2 53 4-8 17 Euphorbiaceae 7 19 0 19 13 Solanaceae 5 12 0 12

Brassicaceae 9 8 3 11 Over half of the native species in the flora are herbaceous perennials (Table 3) ..A.."1!1uals con­ Adiantaceae 5 9 0 9 stitute over one auaner of the native flora. At the Research Ranch, ·the majority ofthese are sununer Cactaceae 5 9 0 9 annuals rather than wi::iter (spring) annuals. Convolrnlaceae 4 9 0 9 Woody species account for less than 15% of the flora, and succulents (Cactaceae, Agavaceae, Cyperaceae 4 9 0 9 Nolinaceae) account for less than 3%. 'trees and shrubs in the flora of the western United States Onagraceae 4 9 0 9 have wider distributions than annual or perennial herbs (McLaughlin 1986). In the flora of the A.rnaran th ace.a e 4 8 9 Research Randi, however, the average ramies of species in these different lifeforms ao not -differ Polygonaceae 3 7 2 9 greatly (Table 3). Trees and shrubs found at the ------1 Research Ranch occur in 23-25% of the floras of ....______, the western United States, 12-13% ofthe floras of Mexico. and 9% ofthe floras ofthe central Cnired A permanent snring at Finley Tank provides States. Compared to the woody plants, annual and habitat for several soec1es not found elsewhere on perennial herbs are relatively less widely disnib­ the Research Ranch: includingLobelia cardinalis, uted in the western United States and more ·widely Carex lanuginosa, and Sisyrinchium demissum. disnibuted in the central United States. The succu­ An aggressive exotic blackbeny, Rubus discolor, lents are least widely disnibuted in Mexico and is firmly established at Finley Tank and is likely to the central United States. displace the native taxa tf not controlled or Floristic affinities of native species at the eliminated. Permanent water in O'Donnell Canyon Research Ranch are presented in Table 4 and also supports species not encountered elsewhere in Figures 3 and 4. The designation of grasslands at the stuay area, including Apocynum cannabinum, the Research Ranch as "Plains and Great Basin Centaurium calycosum, Ranunculus macranthus, Grasslands" (Brov.n and Lowe 1994) suggests that and Parthenocissus quinquefolia. their floristic affinities should be highest to the

Table 3. Distriburion oflifefonns in the flora ofthe Appleton-Whitte/l Research Ranch with their mean percentage incidence in samples. of40 localfloras from the western US.. 32 local floras from Mexico, ar.d 40 localfloras from the central United States.

Percent Percent Percent Number of Percent of incidence in incidence in incidence in Habit native species total flora western U.S. Mexico central U.S.

Trees 21 4.4 25.J 13.2 9.4 Shrubs 49 10.4 22.6 12.2 9.3 Succulents 13 2.7 15.6 3.8 5.0 Herbaceous perennials 253 53.5 19.4 12.9 13.7 Annuals 137 29.0 18.5 14.8 14.0

------FLORA OF THE APPLETON-WHITTill RESEARCH RANCH + Mcl.AUGUN, GEJGER, AND BOWERS

Table 4. Floris tic elements in the flora ofthe Appleton-Whitt ell Research Ranch. with their mean percentage incidence in samples of40 local floras from the western US. 32 local floras from Mexico, and 40 floras from the central United States.

Percent Percent Percent Number of Percent of incidence in incidence in incidence in Floristic element native species total flora western U.S. Mexico central U.S. Madrean Widespread 167 35.3 23.1 15.2 19.3 Apachian 166 35.1 9.1 13.1 2.5 Chihuahuan 41 8.7 11.0 9.8 9.3 Sonoran 42 8.9 30.4 10.7 7.2 Californian 18 3.8 27.5 16.1 21.0 Cordilleran 19 4.0 42.5 10.4 33.4 Intennountain 20 4.2 44.5 9.1 40.0

45

25

2

15-i-~~-.~~~r-~~ --,-~~~~~~,--~~ -,-~>....1..~~~~ -+ -125 -120 -1 15 -105 -100 -90 -85

Figure 3. Map showing the similarities (Otsuka Index) ofthe.flora ofthe Appleton­ Whiuell Research Ranch with other local floras, including 40 from the western United States, 32 from Maico, and 40 from the central United States. Y axis gives the latitude, X axis gives longitude. 118 FLORA OF THE APPLETON-WH/TTELL RESEARCH RANCH +MCLAUGLIN, GEIGER, AND 80~/ERS

0 Mexico Central United Stales

100

0 C1l J:J E :; b z \ \ b

·o 20 50 60 70 e:: Incidence (Per cent)

Figure 4. Frequency distributions ofrange sizes (incidencej ojspecies in the flora ofthe Research Ranch extending into Mexico [OJ and the Central Unized States f•]. north and east in the Colorado Plateau and Great in the Cenrral United_States (2.5% incidence), Plains, but in fact nearly 80 % of the nati\'e mo~tly found only in floras ofthe Edwards Plateau SJ)ecies belong to floristic elements characteristic region of central Texas. ofthe American Southwest (Table 4). The largest Species in the Research Ranch flora classified elements in the flora are the Widespread Madrean as Californian, Apachian, or Widespread Madrean and Apacbian elements. The former includes penetrate somewhat further into Mexico than those species found from western Texas through classified as Chibuahuan. Sonoran, Cordilleran, or southern and southern Arizona, Intermountain, but the differences are not large. whereas the latter are more narrowly distributed in On the other hand, the Research Ranch species southeastern Arizona and southwestern Kew with Cordilleran and lntermountain distributions Mexico. are widespread in the Central United States, while The Chihuabuan element is small for a species with Apachian, Chihuabuan, and Sonoran southeastern Arizona flora - just 9 % of the native distributions are uncommon in the prairies and species. This is related to the paucity oflimestone plains. on the Research Ranch, because species v.ith The overall affinities of the Research Ra."lch Cbihuabuan affinities are most commonly found flora are shown in Figure 3, which maps the in this region on limestone. In addition to the often Otsuka Index (Of) of similarity between the calcareous Bernardino-Hathaway soils, there is a Research Ranch flora and the 40 selected floras single, narrow outcropping of limestone on the for the western United States, the 32 selected west side of Turkey Creek m the southern part of floras from Mexico, and the 40 selected floras the Research Ranch. This outcrop, dominated by from the Central United States. Floras v.ith a high cliffrose (Purshia stansburiana), bas few charac­ similarity ( OJ> 0.40) are restricted to southeastern teristic Chihuabuan species. Arizona, southwestern New Mexico, and adjacent The floristic categories developed by areas in northern Mexico-the "core" Apachian McLaughlin (1992) and used in Table 4 are based area. Similarity decreases with distance, but not only on distributions north of the international uniformly in all directions. Similarity decreases border and west of the Great Plains. It is possible most rapidly to the southwest and least rapidly to that the species that make up the Apachian the southeast, despite the fact that species class­ element, although narrowly distributed in the ified as Chihuahuan do not constitute a large pro­ southwestern Uruted States, are more widespread portion of the flora (Table 4). Similarities with in Mexico or in the Central United States, floras from north-central Mexico (Chihuahua, reaching the northern and western limits of their Coahuila, Durango) are similar to those with the ranges in southeastern Arizona. "Widespread southwestern Great Plains and Edwards Plateau, Madrean" species in the flora of the Research and somewhat greater than those from the central Ranch are as widely or more widely distributed in and northern Great Plains. the Central United States (19% incidence) than in The Research Ranch shares species with both Mexico (15% incidence), but species of the the Great Plains and northern Mexico. Figure 4 Apachian element are comparatively widespread provJdes_ frequency distributions for th~ shared inMexico ( 13% incidence) and comparatively rare species m these two areas, demonstratmg that

FLORA OF THE APP!.ETON-WHITTi:.u.. RESEARCH RANCH +Mcl.AUGUN, GEIGER, AND Bov,. , 119

similarities with floras from the Central United Rare, limestone outcrop adjacent to upper States are due primarily to a small number of Turkey Creek. widespread species (those with high incidence), Astrolepis cochisensis (Goodding) Benham & manv of which also occur in the Cordilleran and Wmdham [Notholaena sinuata (Lag.) Kaulf. lntennountain regions of the western United var. cochisensis (Goodding) Weatherbv]. States. However, the similarities of the Research 7864B. Rare, limestone outcrops. ' Ranch with floras from northern Mexico are Astrolepis integerrima (Hooker) Benham & mostly due to a larger number of species with Windham [Notholaena sinuata (Lag.) Kaulf. narrower ranges (lower incidence), found mostly var. integerrima Hooker]. 7864A. Rare, lime­ in the Apachian floristic district of the south­ stone outcrops. western United States. The sharing of species of Astrolepis sinuata (Lag. ex Sw.) Benham & narrower range suggests a closer floristic Wmdham S3?. sin!'ata fNotholaena sinuata relationship, analogous to the sharing of more (Lag.) Kaul!.J. Geiger])_ Rare, canyons. derived characters among taxa. The floristic Bommeria hispida (Mett. ex Kuhn) Underw. Rare, affinities ofthe Research Ranch with the grassland rock outcrops in Lyle Canyon. and semi-desert regions on1 the east side of the Cheilanthes eatoni Baker. 7799. Rare, rock out­ Sierra Madre Occiaental are somewhat stronger crops in Lyle Canyon. than those with the Great Plains (Fig. 3), Cheilanthes fendleri Hooker. 7794, 7798. consistent with Rzedowski's (1993) concept ofa Uncommon, oak woodlands. floristic "mega-Mexico" which includes the Cheilanthes lindheimeri Hooker. 7793. Aoachian ano Chihuahuan regions of the Uncommon, oak woodlands. southwestern United States. Thus we agree more Pellaea atropurpurea (L.) Link. 7880_Rare, oak with Bock and Bock (2000) in characterizing these woodland in Lyle Canyon. grasslands as "Madrean Mixed-grass Prairies" rather than as "Plains and Great Basin Grasslands" (Brown and Lowe 1994). GYMNOSPERMS THE FLORA OF THE RESEARCH RANCH Cupressaceae Junioerus coahuilensis (Martinez) Gaussen ex R. Voucher citations represent collections made l>. Adams [Juniperus monospenna (Engelm.) by the senior author and coworkers unless Sarg., in panl. 8111. Uncommon, grasslands otherwise noted, and are rnostlv housed at the and woodlands. Research Ranch. Approximately 94 % of the flora Juniperus deppeana Steud. var. deppeana [J. is represented by voucher specimens. Annotations deppeana var. pachyphlaea (Torr.) Martinezl of species as "abundant," "common," J. Bock 82-6-6. Common, woodlands and "uncommon," or "rare," although necessarily canyons. subjective, are defined as follows: (1) abundant species are dominants of grasslands, oak Ephedraceae woodlands, or riparian areas; (2) common species are subdominants in these habitats or dominants in Ephedra trifurca Torrey ex S. Watson. Elias 8463. less extensive habitats, such as springs or Rare, calcareous grasslands. limestone outcrops; (3) uncommon species are less Pinaceae frequently encountered but still known from several localities, and (4) rare species are those Pinus cembroides Zucc. Elias 8411. Common, found only a few times in particular habitats. woodlands and canyons. Exotic SP,ecies are indicated by an asterisk (*). "Washes 'refers to broad sections of Post Canyon, Turkey Creek, and O'Donnell Canyon in the ANGIOSPERMS - DICOTYLEDONS northern half of the Research Ranch that are Acanthaceae dominated by sacaton, desert willow (Chilopsis linearis), rabbitbrush ( Chrysothamnus nauseosus), Dyschoriste decumbens (A. Gray) Kuntze. 727 I. ash and other deciduous, riparian trees. Common, grasslands and woodlands. "Canyons" refers to narrower drainages and their Amaranthaceae tributaries, dominated by oaks and junipers, in the · southern half of the Research Ranch. *Amaranthus a/bus L. 8030. Rare, disturbed areas. Amaranthus pa/meri S. Watson. 7852. Common, PTERIDOPHYTES washes and disturbed areas_ Equisetaceae Amaranthus powellii S. Watson. 7345 . Un­ common, mostly in woodlands. Equisetum laevigatum A. Braun. Elias 8441. Rare Amaranthus torreyi (A. Gray) Benth. 803/.Un­ along stretches of upper Turkey Creek. common, srrasslands. Froelichia arizonica Thomber ex Standley. Pteridaceae Geiger 22. Common, grasslands. _ Argy_rochosma limitanea (Maxon) Windham Gomphrena caespitosa Torrey. Elias 8997. Un­ [Pellaea limitanea (Maxon) Morton] 7862. common, grasslands.

120 FLORA OF THE AP?LETON-WHITTELL RESEARCH RAN:;;.J + MCLAUGLIN, GEIGER, AND 8:)',',::RS

Gomphrena nicida Rothrock. 7791. Uncommon, O'Donnell Canyon, flowering in both spring grasslands and woodlands. and fall. Gomphrena sonorae Torrey. 7765. Common in Ambrosia confertiflora DC. [Franseria grasslands, uncommon in woodlands. con(eniflora (DC.) Rydb.) 7848. Common, Guilleminea densa (Humb. & Bonpl. ex Willd.) grasslands, washes, and disturbed sites. Moq. var. densa [Brayulinea densa Humb. & Ambrosia psilostachva DC. 7867. Common, Bonpl. ex Willd.]. 7849. Common, grasslands washes and grasslands. disturbed sites. ' Artemisia campestris L.~s.pacifica (Nun.) Hall & Clements. [A. paci zca Nun.) 7788. Rare, Anacardiaceae along creek in Post anyon. Rhus microphylla Engelm. ex A. Gray. Elias Artemisia dracunculus L. (A. dracunculoides 8943. Rare, grasslands. Pursh] 7881. Uncommon, grasslands. Rhus trilobata Nun. var. anisophylla (Greene) Anemisia ludoviciana Nun. ssp. albula (Woot.) Jepson. Elias 8362. Uncommon, woodlands. Ke:k. 7351. Unconunon, woodlands. Rhus virens Lindh. ex A. Grav var. choriophylla Anemisia ludoviciana Nun. ssp. sulcata (Rydb.) (Wo~ton & S~dley) L. D. Benson [R. Keck. 7695. Conunon, canyons. chonophylla Wooton & Standley). Elias Aster (alcatus Lindi. var. crassulus (Rydb? 9313. Uncommon, grasslands and woodlands. Cronq. [Aster commutatus (Torrey & A. Grav Toxicodendron T)'doergii (Small ex Rydb.) Greene A. Grav Yar. crassu!us (Rydb.) Blake] 73(L. fRhus radicans L. var. rydberBidens aur~a (Arton) Sherff. 7875. Rare, along common, grasslands, woodlands, and washes. stream m Lyle Canyon. Asclepias quinquedentata A. Gray. 7991. Rare, Bidens bigelovii A. Grav. 7802. Uncommon, oak oak woodland in Post Canyon. woodlands in Lyle Canyon. Ascli!pias subvenicillata (A. Gray) Vail. 7579. Bidens ferulifolia (Jacq.) DC. 7874. Rare, along Uncommon, grasslands, woodlands, and stream in Lyle Canyon. washes. Bidens leptocephala Sherif. 7320. Abundant Asc/epias uncialis Greene ssp. uncialis. Peterson below oaks. et al. s.n. (ARIZ). Rare, grasslands. Brickellia betonicifolia A. Gray. 7801 . Sarcostemma crispum Bentham [Funastrum Uncommon, oak woodland in Lyle Canvon. cn·spum (Bentham) Schlechter]. 7557. Rare, Brickellia califomica (Torrey & A. Gray) A.'Gray grasslands. var. califomica. 8804. Uncommon, canyons. Brickellia eupatorioides (L.) Shinners var. Asteraceae chlorolepis (Wooton & Standley) B. L. Turner nana (A. Gray) Reveal & King [Perezia (fuhnia rosmarinifolia Vent var. chlorolepis nana A. Gray]. Anonymous, August 27, 1987. 0Vooton and Standley) Blakel. 7536. Rare, below mesquites in grasslands. Common, oak woodlands and PI2Ss1ands. Acourtia wrightii (A. Gray) Reveal & King Brickellia floribunda A. Gray. 8127. Common [Perezia wrighzii A. Grayl. 7359. Rare, late-fafJ bloomer in washes. several plants in grassland adjacent to lower Brickellia venosa (Woot. & Stand!.) B. L. Robins. 7855. Uncommon, calcareous grasslands. FLORA OF TrlE APPLETON-WHITTE!.L RESEARCH RANCH + MclAUGUN, GEJGER, AND BOWE" ,, 121

Canninatia tenuiflora DC. 7776. Unconunon Heterosperma pinnatum Cav. 7314. Common, oak below oaks in woodlands and riparian areas. woodlands. Carphochaete bigelovii A. Gray. 7463. Rare, Heterotheca subaxillaris (Lam.) Brin. & Rusby. found on rocks in Post Canyon. 7288. Uncommon, washes, grasslands, Chaetopappa ericoides (Torrey) G. L. Nesom disturbed sites. fAster arenosus (Heller) Blake). Elias 8301. Hymenoclea monogyra Torrey & A. Gray ex A. tommon in grasslands and woodlands. Gray. 7884. Rare, O'Donnell Canyon in Chrysothamnus nauseosus (Pallas ex Pursh) Britt. northeast corner of the Research Ranch. ssp. latisquameus (A. Gray) Hall & Clements. Hymenothru wislizenii A. Gray. Elias 9047. Williams s.n, October 2, 1971. Abundant in Common, grasslands. washes. Jsocoma renuisecta Greene rAplopappus Cirsium arizonicum (A. Gray) Petrak. 7624. Un­ tenuisectu.s (Greene) Blake). 7324. Common common, grasslands. to abundant in grasslands. Cirsium neomexicanum A. Gray. Uncommon, *Lactu.ca serriola L. 7874. Uncommon, canyons. grasslands. Laennecia coulteri (A. Gray) G. L. Nesom Cirsium ochrocentrum A. Gray. 7531. Common, f Conyza coulteri A. Gray]. 7758. Uncommon, grasslands. t:'inley Tank. Conyza canadensis (L.) Cronq. [Erigeron Laennecia sophiifolia (Kunth) G. L. Nesom canadensis L.]. 783J. Common, washes, f Conyza sophiaefolia Kunth). 7702. canyons, grasslands, disturbed sites. .Uncommon, oak woodlands. Cosmos parvij?orus (Jacq.) Pers. Elias 9088. Lasianthaea podocephala (A. Gray) K. Becker Uncommon, oak woodlands. fZexmenia podocephala A. Gray]. 7318. Dyssodia papposa (Vent.) Hitchc. 8129. Locally Uncommon, oak woodlands. common, washes. Lygodesmia ramosissima Greenm. 7340. Rare, Erigeron arisolius G. L. Nesom ~Engeron calcareous grasslands east of lower O'Donnell divergens Torrey & A. Gray, in part . 7614, Canvon. - 7810. Conunon, mostly in grasslan s. Machaeranthera gracilis (Nutt.) Shinners Erigeron colomexicanus A. Nelson [Erigeron fAplopappus gracilis (Nun.) A. Gray]. Elias nu.di/lorus Buck!.). 7446. Uncommon, grass­ ~ 109. Common, grasslands, broad washes. lands. Machaeranthera pinnatifida (Hooker) Shinners En'geron flagellaris A. Gray. 7454. Uncommon, ssp. pinnatifida var. pinnatifida [Aplopappus oak woodlands. spinulosus (Pursh) DC. var. gooddingii (A. Erigeron neomexicanus A. Gray. 7712. Rare, oak Nels.) Blake]. 8799. Uncommon, grasslands . woodlands. •Machaeranthera tagetina Greene [Aster tagetinus Gaillardia pinnati/ida Torrey. 7486. Uncommon, (Greene) BlakeJ. 7301. Common, grasslands oak woodlands, riparian areas. and riparian areas. Gnaphalium canescens DC. [ Gnaphalium wrightii Machaeranathera tanacetifolia (Kunth) Nees A. Gray]. 7299. Common, !rrasslands. f Aster tanacetifolia Kunth]. 7873. Gnapha/ium leucocephalum A. 'Gray. Elias 9ll2. Uncommon, !rrasslands. Uncommon, mostly in washes. Malacothrufen'd'feri A. Gray. 7489. Uncommon *Gnaphalium luteoa/bum L. 7510. Rare, found spring annual, grasslands. below cottonwoods above reservoir in Post Melampodium sericeum Lag. [Melampodium Canyon. hispidum Kunth]. 7274. Uncommon, oak Gnaphaliu.m stramineum Kun th [ Gnaphalium woodlands. chilense Spreng.l. 7574B. Rare, springs. Pectis filipes Harvey & A. Gray. 7701. Guardiola plaryphylla A. Gray. Geiger 16. Rare, Uncommon, woodlands and canyons. Post Canyon. Pectis imberbis A. Gray. 8047. Rare, in a single Gutierrezia microcephala (DC.) A. Gray. 7761. tributary of upper O'Donnell Canyon. Uncommon, grasslands. Pectis longipes A. Gray. 7464. Uncommon, Heleniu.m thurberi A. Gray. 7569. Rare, along grasslands. stream in Lyle Canyon. Pectis prostrata Cav. 8037. Rare, grasslands. Helianthu.s annuus L. Elias 9 ll 0. Abundant, Porophyllu.m ru.derale (Jacq.) Cass. s~ larger washes, disturbed sites. macrocephalu.m (DC.) R. .R.. Johnson lf'. Helianthu.s petiolaris Nutt. ssp. petiolaris. 8067. macrocephalu.m DC.]. 8044. Rare, canyons. Uncommon, adjacent to stream in Lyle Sanvitalia abertii A. Gray. 7276. Uncommon, Canyon. woodlands and canyons. Heliomeris longifolia (Robins. & Greenm.) Schkuhria anthemoidea (DC.) Coulter var. Cockerell var. annu.a (M. E. Jones) Yates wrightii (A. Gray) Heiser [S. wis/izeni A. rViguiera annua (Jones) Blake]. 7353. Gray var. wrighrii (A. Gray') Blake]. 7316. tommon, mostly in oak woodlands. Uncommon, oak woodlands. Heliomeris multiflora Nutt. var. mu.ltijlora Senecio jlaccidus Less. var. /laccidus [S. [Viguiera multiflora (Nutt.) Blake var. longilobus Bentham]. Elias 8340. multijlora]. 7861. Locally abundant in Uncommon, grasslands and washes. washes. Solidago velu.tina DC. [S. sparsiflora A. Gray]. Heliopsis parvifo/ia A. Gray. 7617. Uncommon, 7787. Rare, in Post Canyon south of canyons and oak woodlands. Headquarters. 122 FLORA OF THE APPLETON-WHTTTELL RESEARCH RANCH +MC/..AUGLJN, GEIGER, AND BOWERS

•sonchus aspa (L.) Hill. 7891. Uncommon, Draba cunei{olia Nutt. ex Torrev & A. Gray var. mostly in riparian areas. cuneifofla. Elias 9324. Rare: on rocks in Post Stephanomeria pauciflora (Torrey) A. Nelson. Canyon above reservoir. 7534. Common, grasslands. Lepidium lasiocarpum Nutt. var. iasiocarpum. Stephanomeria thurberi A. Gray. 7457. Uncommon, mostly in disturbed areas. Uncommon, grasslands. Lepidium thurberi Wooton. Geiger 15. Thelesperma longipes A. Gray. 7709. Rare, Uncommon, grasslands. canyons. Lesquerella fend/en· (A. Gray) S. Watson. 7452. Thelesperma megapotamicum (Spreng.) Kuntze. Rare, calcareous grasslands. Elias 8340. Common, grasslands and oak Penneilia micrantha (A. Gray) Nieuwl. woodlands. rThelypodium micranthum (A. Gray) S. Thymophyl/a acerosa (DC.) Strother [Dyssodia Watson]. 7516. Uncommon, woodlands. acerosa DC]. Elias 8486. Locally common on Rorippa nasturtium-aquaticum (L.) Havek. Elias ridgetops in calcareous grasslands adjacent to 8446. Rare, upper ponions of O'Donnell lower O'Donnell Canyon. Canyon. *Tragopogondubius Scop. 7546. Uncornrnon,oak Schoenocrambe linearifolia (A. Gray) Rollins woodlands. rSisymbrium linearifolium (A. Gray) Payson]. Verbesina encelioides (Cav.) Bentham & Hooker 7346. Uncommon, oak woodlands. f. ex A. Gray ssp. exauriculata (Robins. & • Sisymbrium altissimum L. Anonymous, April 19, Greenm.) J. R. Coleman. 7604. Common, 1987. Rare, disturbed sites. washes, seasonally wet depressions. *Sisymbrium irio L. 7986. Uncommon, disturbed Verbesina rothrockii Robins. & Greenm. Elias sites. 12550. Rare. oak woodlands. Viguiera cordifolia A. Gray. 7785. Rare, oak Cactaceae · woodlands. Cylindropuntia spinosior (Engelm.) Knuth Viguiera dentata (Cav.) Spreng. var. dentata. f Opuntia spinosior (Engelm. & Bigel.) 7792. Common, oak woodlands, canyons. "foumey). Common, grasslands and Xanthium .,zrumarium L. var. canadense (P. Hill) woodlands. Torrey & A . Gray [X saccharatum Wallr.J. Echinocereus jendleri (Engelm.) F. Seitz var. 7812. L_ocally abundant in washes, along rectispinus (Peebles) L. D. Benson. streams tn ca..,yons. Uncommon, grasslands. Xanthocephalum r;>'mnospermoides (A. Gray) Echinocereus rig{dissimus (Engelm.) Haage f. [£. Benth. & HooKer f Elias 8926. Common m pectinatus (Scheidw.) Enoelm. var. seasonally wet dejressions. rigidissimus (Engeim.) Engelml Common, Zinnia acerosa (DC. A. Gray [Z. pumila A. grasslands. Gray]. Elias 848 . Rare, limestone outcrop Escobaria vivipara (Nun.) Buxb. var. bisbeeana adjacent to Turkey Creek, calcareous (Orcutt) D.R._ Hunt [Mammillaria aggregata grasslands. Engelm., in partl. Common, grasslands. Zinnia grandiflora Nutt. 7284. Uncommon, Mammillaria heyaeri Muehlenpfordt var. grasslands. macdougalii (Rose) L. D. Benson [M. Zinnia peruviana (L.) L. 7808. Rare, adjacent to macdougalii Rose]. Rare, grasslands, rock stream bottom in Lyle Canyon. outcrops. Opuntia chlorotica Engelm. & J. M. Bigelow. Bignoniaceae Uncommon, oak woodlands. Chil~sis linearis (Cav.) Sweet ssp. arcuata Opuntia engelmannii Salm-Dyck ex Engelmann osb.) Henrickson. 7571 . Common in lower var. engeimannii. Uncommon, grasslands. 'Dormell Canyon. Opuntia macrocentra Engelm. var. macrocentra. Uncommon, grasslands. Boraginaceae Sclerocactus inrenextus (Engelm.) N. P. Taylor Heliotropium fruticosum L. [H. phyllostachyum var. intertextus [Echinomastus intertextus Torrey]. 8126. Uncommon, grasslands. (Engelm.) Britton & Rose}. Uncommon, Lithospennum incisum Lehm. 7328. Common, grasslands. grasslands.· Cam pan ulaceae Plagiobothrys arizonicus (A. Gray) Greene ex A. Gray. Anonymous, April 29. 1973. Lobelia cardinalis L. ssp. cardinalis [L. cardinalis Uncommon spring armual, grasslands. L. ssp. graminea (Lam.) McVaugh]. Geiger Brassicaceae 30. Rare, spring at Finley Tank. Capparaceae *Cardaria draba (L.) Desv. ssp. draba. Rare, one population along road nearjunction ofTurkey Poianisia dodecandra (L.) DC. ssp. trachysperma Creek and O'Donnell Canyon. (Torrey & A. Gray) Iltis [P. trachysperma Descurainia pinnata (Walt.) Britton ssp. Torrey and A. Gray]. Geiger 7. Uncommon, halictorum (Cockerell) Detling. 7459. washes. . Common winter annual, grasslands, disturbed areas. ~ FLORA OF THE APPLETON-W J. RESEARCH RANCH + Mcl.AUGUN, GEIGER, AND E 123

Caprifoliaceae Cucurbita foetidissima Kunth. Uncommon, Sambucus mexicana K. Pres! ex DC. 7570. Rare, grasslands. Post Canyon. Ericaceae Caryophyllaceae Arctostaphylos pung~ns Kunth. Elias 9328. Drymaria glandulosa K. Pres! Wryman'afendleri Locally abundant m Post Canyon, uncommon S. Watson]. 8188. Rare, oak woodland in Post elsewhere in oak woodlands. Canyon. . . . Drymaria mollugznea (Lag.) D1dr. [Drymarza Euphorbiaceae sperguloides A. Gray]. 8050. Uncommon, oak Aca/ypha lindheimeri Muell. Arg. 7612. woodlands. Uncommon, washes and canyons. Silene antirrhina L. 7515. Rare, oak woodlands. Acalypha neomexicana Muell. Arg. 7949. Common. oak woodlands. Chenopodiaceae Acalypha osrryifolia Riddell. 7783. Uncommon, Atrivle.x eleaans (Moq.) D. Dietr. var.fasciculata mostly in washes. ·cs. Watson) M. E. Jones [A. Jascicula!a S. Chamaesyce albomarginata (Torrey & A. Gray) Watson]. 7606. Uncommon, disturbed sites. Small [Euphorbia albomarginata Torrey & -~­ Chenopodium berlandien· Moq. var. sinuatum (J. Gray]. Elias 8308. Uncommon, mostly m Murr) H. A. Wahl. 7854. Uncommon, most1y disturbed areas, washes. in washes. Chamaesyce dioica (K~!b) Millsp. [Euphcrbia Chenopodium (remontii S. Watson var. fremontii. indivisa (En2:elm.) T1aestrom]. 8796. Locally 7860. Uncommon, grasslands and oak abundant in washes. woodlands. Chamaesyce hirta (L.) Millsp. [Euphorbia hirta Chenopodium graveolens Willd. ( C. i13.cisum Poir. L.]. 7622. Common, washes. . var. neomexicanum Aellen]. 8111. Rare, oak Chamaesyce hyssopifolia (L.) Small [Euphorbia woodland in Post Canvon. hyssopifolia L.J. 729i. Common, grasslands Chenopodium neome.xicanum Standley var.. and washes. palmeri (Standley) T. W. Walters [C. palmerz Chamaesyce revoluta (Engelrn.) Small Standley). Elias 12201. Uncommon, [Euphorbia revoluta Engelm.). 7Jl0. Rare, grasslands. calcareous 2:rasslands. *Sa[sola kali L. Williams s.n., October 2, 1971. Chamaesyce - serpylli(olia (Pers.) Small Common in disturbed areas, uncommon in r~uphorbia serpyllifolia Pers.). 7811 . washes. uncommon, mostly 1D washes. Chamaesyce srictospora (Engelm.) Small Convolvulaceae fEuphorbi a stictospora Engelm.). 8036. Uncommon grasslands and washes. Convolvulus eauitans Bentham [ C. incanus Yahl). Croton pottsii (Kfotzsch) :\foell. Arg. var. pottsii Elias 8401. Common, !rrasslands. f C. corymbulosus Engelm.). Elias 8375. Dichondra brachypoda Wooton & Standley. Common, grasslands. 8800. Locally abundant under oaks, but rarely Euphorbia bilobata Engelrn. 7355. Rare, washes. flowering. Euphorbia e.xstipulata lngelrn. Rare, calcareous Evolvulus arizonicus A. Gray. 72 9 5. Common, grasslands. grasslands and woodlands. Poinsettia heterophylla (L) KJotzsch ~ Garcke Evolvulus nuttallianus J. A. Schultes fE. pilosus fEuphorbia heteroph,1,·fla L.]. Elzas 8931. Nutt.l. 7544. Common, grassfanas and Uncommon, oak woodlands and canyons. woodlands. Poinsettia denrata (Michx.) KJotzsch & Garcke Evolvu/us sericeus Swartz. Elias 8420. Common, [Euvhorbia dentata Michx.]. Uncommon, grasslands and woodlands. . grasslands and woodlands. Jpomoea capillacea (Kunth) G. Don [I. muncata Poinsettia radians (Bentham) KJotzsch & Garcke Cav.]. 8022. Rare, oak woodlands. fEuphorbia radians Bentham). Elias 84J2. Jpomoea costellata Torrey. 8054. Common, Common, grasslands .. Leafles_s, flowe~ng grasslands and woodl~ds. . sterns appear in the sonng; stenle vegetative Jpomoea cristulata Halher f. Elzas ~O? 1. [I. sterns are produced ·following the onset of coccinea L.]. Locally common, twmmg up summer rams. through shrubs in washes. Jatropha machrorhiza Bentham var. septemfida Jpomoea hederacea JactJ [I. hirsutula J~cq. f., /n Engelm. Elias 8951. Uncommon, grasslands partl. Geiger 38. ncommon, climber m ancf woodlands. washes. Tragia laciniata (Torrey) Muell. ..\rg. Rare, Lyle Cucurbitaceae Canyon. . Tragia ramosa Torrey [T. srylans Muell. lug.]. Apodanthera undulata A. Gray. Geiger 31. 7856. Uncommon, grasslands. Uncommon, grasslands. Cucurbita digitata A. Gray. Uncommon, grasslands. 124 FLORA OF THE APPLETON·WHJTTal. RESEARCH RAN:;H +McU.UGUN, GEIGER. AND BOWERS

Dalea versicolor Zucc. SS.P.· versicolor var. sessilis Fabaceae (A. Gray) Bameby tD. wislizenii A. Gray]. Acacia angustissima (P. Miller) Kuntze var. 7350. Rare, oak woodlands. suffrut~cens (Rose) Isely. 8062. Uncommon, Desmanthus cooleyi (Eaton) Trel. 7293. Common, mostly m grassslands. grasslands. Amorphafruticosa L. 7567. Rare, Post Canyon. Desmodium batocaulon A. Gray. Geiger 3 7. Astragalus allochro_us A. Gray. Elias 8317. Uncommon, oak woodlands and canvons. Uncommon wmter annual, mostly in Desmodium cinerascens A. Gray. 7809. Rare, on grasslands. rock walls in Lyle Canyon. Astragalus arizonicus A. Gray. 7447. Uncommon Desmodium grahamii A. Gray. 8041. Rare, oak grasslands. ' woodlands and canyons. Astragalus molli~simus -r:orrey .':'ar· bigelovii (A. Desmodium neomexicanum A. Gray. 7806. Gray) Barneoy [A. bzgelov11 A. Grayl. Elias Uncommon, oak woodlands. 8395. Common, grasslands and woodlands. Desmodium rosei Schubert. 7797. Uncommon, Astragalus nothoxys A. Gray. 7441. Abundant in oak woodla,ds. gr_asslands and woodlah.ds following wet Indigo/era sphaerocarpa A. Gray. 8046. Rare, wrnters. oak woodlands. Astragalus nuttallianus DC. var. nuttallianus. Lotus greenei Onley ex Kearney & Peebles. Elias Liston 739-5. Uncommon, grasslands. 8303. Abundant in grasslands and woodlands Astragalus thurberi A. Gray. Elias 8393. after wet winters. Uncommon. ~asslands. Lotus humisrratus Greene. 7451. Uncommon, Calliandra eriop'iiylla Bentham var. eriophylla. grasslands, woodlands, and washes. Common, grasslands. Lotus oroboides (Kunth) Ottlev ex Kea'7!ev & Calliandra humilis Bentham var. rericulata (A. Peebles. 7601. Uncommon,'woodlands. · Gray) L. D. Benson [C. reticulata A. Grav]. Lupinus brevicaulis S. Watson. 7450. Uncommon 7305. Common, grasslands. ' spring annual, grasslands and washes. Chamaecrista nictirans (L.) Moench ssp. nicrirans Lupinus . concinnus Agardh. s~. concinnus. var. leptadenia (Greenm.) Gandhi & Hatch Mamn. s.n., April 19, 1981. Uncommon, [Cassia lepradenia Greenm.J. 7282. Common, grasslands and washes. grasslands a.,d woodlands. Macroprilium gibbosifolium (Onega) A. Dele:ado Cologania an?-5tifolia Kunth [ C. longifolia A. fPhaseo lus heterophyllus Willd.). 1703. Gray]. 8116. Rare, Post Canvon. Uncommon, !2J'a5slands and woodlands. Coursetia caribaea (Jacq.) Lavin var. sericea (A. Marina calycosa (A. Gray) Barneby [Dalea Gray) La\·m [ Cracca edwardsii A. Grav]. calycosa A. Gray). 754). Rare, washes. 8049. Rare. canvons. · *Me/ilotus a/bus Meaik. 7608. Uncommo:i, Post CrotalariafumJ!a Ortega. Armstead s.n., October Canyon. 2,197 . uncommon, 12rassiands and * Melilotus officina/is (L.) Lam. Elias 8382. woodlands. - Uncommon. washes. Dalea albiflora A. Gray. 7348 . Uncommon, Mimosa aculea!icarpa Ortega var. biuncif_era grasslands and woodlands. (Bentham) Barneby fMimosa biuncifera Dalea brachysrach_vs A. Gray rD. lemmoni Bentham]. 'Williams & Ogden s.n., October 2, Pany]. ~120. lJncommon, grass1ands. 1971. L~cally abundant in grasslands, Dalea .candzda W11ld. var. oligophylla (Torrev) . common m woodlands and canyons. S~mners [Petalostemon candidum (Wi!ld.) Mimosa dysocarpa Bentham. Elias 9052. M1cb.x. var. oligophyllum (Torrey) Hermann]. Common in grasslands and woodlands. 7563. Rare. oak woodlands. Mimosa graham ii A. Gray. 7538. Uncommon, oak Dalea e:xigua Bameby [Petalostemon e:xilis A. woodlands. Gray]. Elias 8945. Rare, along stream in Lyle Phaseolus acutifolius A. Gray var. tenui(olius A. Canyon. Gray. Geiger 32. Uncommon, mostly in oak Dalea formosa Torrey. 7497. Locally common in woodlands. calcareous irrasslands. Phaseolus ritensis M. E. Jones. 7859. Rare, Dalea grayi {Vail) L. 0. Williams. 8063. grasslands. Uncommon. grasslands. Prosopis glandulosa Torrey var. torreyana (L. D. Dalea jamesii (Torrey) Torrey & A. Gray. 7564. Benson) M. C. Johnst. [.P. juliflora (Swartz) Rare, grasslands. DC. var. torreyana L. D. Benson). Rare, Dalea lachnosrachys A. Gray. 8038. Uncommon, grasslands. grasslands. Prosopis velutina Wooton [.P. juliflora (Swartz) Dalea nana Torrey ex A. Gray var. canescens DC. var. velutina (Wooton) Sarg.]. Elias Kearney & Peebles. 7632. Common, 8341. Abundant in grasslands in northe:n part grasslands. of the Research Ranch, common elsewhere in Dalea neomexicana (A. Gray) Cory var. grasslands and woodlands. neomexicana. 7500. Rare, calcareous Psora/idium tenuiflorum (Pursh) Rydb. [Psoralea grasslands. !enuiflora Pursh1. 7532. Unconunon, mostly Dalea pogonathera A. Gray. 7535. Uncommon, in oak woodland's. grasslands. Rhynchosia senna Gillies ex Hooker var. texana (Torrey & A. Gray) M. C. Johnston [R. ;exana FLORA OF THE APPLETON· WHITTt.. ,ESEARCH RANCH +Mcl.AUGLJN, GEIGER, AND BOI\ lLO

Torrey & A. Gray]. Geiger 14. Common, grasslands and woodlands. Krameriaceae Senna bauhinioides (A. Gray) Irwin & Barneby Krameria erecta Willd. ex J. A. Schultes [K. [Cassia bauhinioides A. Gray]. Geiger 2. parviflora Bentham]. 7492. Locally common uncommon, grasslands. m calcareous grasslands. Tephrosia tenella A. Gray. Geiger 50. Rare, rock Krameria lanceolata Torrey. Elias 8388. outcrops in Post Canyon. Uncommon, grasslands. Fagaceae Lamiaceae Quercus arizonica Sarg. Bock 8277. Common, Hedeoma dentazum Torrey. 7638. Uncommon, oak woodlands. canyons. Quercus emoryi Torrey. Elias 8350. Abundant, Hedeoma drummondii Benth. 7609. Rare, Post oak woodlands. Canyon. Quercus oblongifolia Torrey. 8805. Uncommon, *Marrubium vulgare L. Geiger 18. Uncommon, grassland on Bald Hill. Post Canyon. Quercus turbinella Greene. ~885. Rare, one plant Monarda citn.odora Cerv. ex Lag. ssp. noted along drainage east oflower O'Donnell austromontana (Epling) Scora [M. Canyon. austromontana EplingJ. Geiger 21. Common in washes and canyons, uncommon in Fouquieriaceae grasslands and woodlands. Fouquieria solendens Engelm. ssp. splendens. Salvia subincisa Bentham. Geiger 25. Common, Elias 84'89. Locally conunon, calcareous grasslands and woodlands. grassland. Scutellaria potosina T. S. Brandeg. ssp. platyphylla Epling. Geiger 19. Rare, along Fumariaceae stream bottom m Post Canyon below reservoir. Corydalis aurea Willd. ssp. occidentalis (En~elm. Stachys coccinea Jacq. Geiger 17. Uncommon, ex A. Gray) G. B. Ownbey. Elias Y333. canyons. Uncommon, grasslands and washes. Trichostema arizonicum A. Gray. Geiger 43. Garryaceae Rare, on rock walls in Lyle Canyon. Garrya wrightii Torrey. Elias 9023. Rare, Linaceae woodlands and canyons. Linum puberulum (En!?elm.) Heller. 7494. Gentianaceae Unconunon, grasslancls. Centaurium calycosum (Buckl.) Fem. var. Loasaceae calycosum. 7887. Rare, in stream, upper Mentzelia albicaulis Hooker. 7573. Common, 0 'Donnell Canyon. washes and disturbed areas. Geraniaceae Mentzelia isolata Gentry [M. asperula Wooton & Standley]. 7772. Uncommon, oak woodlands. *Erodium cicutarium (L.) L'Her. ex Ait. Martin Mentzelia multiflora (Nutt.) A. Gray. 7550. s.n., March 19, 1987. Unconunon, mostly in Uncommon, disturbed sites. disturbed sites. Lythraceae Grossulariaceae Cuphea wrightii A. Gray. 7804. Rare, oal< Ribes aureum Pursh var. aureum. 7461. Rare, a woodlands in Lyle Canyon. few shrubs in Post Canyon above the Lythrum califomicum Torrey & A. Gray. 7558 reservoir. Rare, found in Post Canyon and at Finle) Hydrophyllaceae Tanlc. Phacelia arizonica A. Gray. Liston 739-24. Malpighiaceae Uncommon, grasslands and woodlands. Aspicarpa hinella L. C. Richard. 7796 Phacelia bombycina Wooton & Standley Uncommon, oak woodlands. fPhacelia crenulata Torrey, in part]. 7490. Uncommon, grasslands and woodlands. Malvaceae Phacelia coerulea E. L. Greene. 7485. Anoda cristata (L.) Schltdl. 7708. Uncommon Uncommon, grasslands and woodlands. canyons. Juglandaceae Rhynchosida physocalyx (A. Gray) Fryxell. 7555 Uncommon, grasslands. Jug/ans major (Torrey) Heller. Bock 8276. Sida abutifolia P. Mill [S. procumbens Sw.]. 7338 Uncommon, washes and canyons. Common, grasslands.

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126 FLORA OF THE APPLETON·WHITTEU. RESEARCH RANCH + MCU.UGUN, GEIGER, AND 8Y...'ERS

Sida neomexicana A. Gray. 7324. Common, Oxalis drummondii A. Gray (0. amplifolia (Trel.) grasslands. Knuth). 8040. Rare, Post Canyon. Sida spinosa L. 7322. Common, ~sslands. Sphaeralcea angustifolia (Cav.) G. Don ssp. Papaveraceae cuspidata (A. Gray) Kearney. 7572. Argemone pleiacantha Greene ssp. pleiacantiza. Uncommon, mostly in washes. 75 51. Common, washes and disturbed a..--eas. Molluginaceae Pedaliaceae *Mollugo venici//ata L. 7281. Abundant, Proboscidea parviflora (Wooton) Wooton & grasslands and woodlands. Standley ssp. parvi(lora. Elias 8946. Locally Nyctaginaceae common, grasslands. Allionia incarnata L. Geiger 29. Common, Plantaginaceae washes, grasslands, disturbed sites. Plantago patagonica Jacq. 7575. Uncommon, Boerhavia coccinea P. Mill. 7778. Uncommon, grasslands, woodlands, and washes. woodlands, washes, grasslands. *Plantago virginica L. Noel 17. Uncommon, Boerhavia coulieri (Hooker f) S. Watson. 7851. springs. Uncommon. \l,ashes. Boerhavia erecca L. Geiger 26. Common, mostly Platanaceae in washes. Boerhavia purpurascens A. Gray. 7693. Platanus wrightii S. Watson. Elias 8359. Uncommon, canyons. Common, washes and canyons. Mirabilis coccineus (Torrey) Benth. & Hooker f. Polemoniaceae fOxybaphus coccineus Torrey]. 7537. Uncommon, oak woodlands. Eriastrum diffusum (A. Gray) Mason. Manir. s.n., Mirabilis loni[flora L. var. wrightiana (Gray) May 2, 1987. Uncommon, grasslands a.id Kearney &: Peebles. Elias 9060. Uncommon, washes. oak woodlands. Gilia (lavocincta A. Kelson SS.Q. australis (A . D. G"rant & V. Grant) A. D. Grant & Y. Grant. Oleaceae Bock 8267. Uncommon, grasslands and Fraxinus velutina Torrey. 7610. Common, washes. canyons. Gilia mexicana A. D. Grant & Y. Grant. 7456. Common. !!rassla.11ds and washes. Onagraceae Ipomopsis mcicombii (Torrey ex A. Gray) Y. Grant [Gilia macombii Torrey). 7623. Uncommon, Calylophus hanwegii (Bentham) Raven ssp. canyons and oak woodlands. f!Ubescens (A. Gray) Towner & Raven Ipomopsis thurben· (Torrey ex A. Gray) Y. Grant tOenothera greggii A. Gray]. 7498. Locally fGilia thurberi Torrey]. 7637. Rare, Lyle common, calcareous ridgetops. Canyon. Epilobium canum (Greene) Raven ssp. latifolium ooker) Raven [Zauschneria /ati(olia Polygalaceae ooker) Greene var. arizonica (Davidson) ffilend]. 7707. Uncommon, canyons. · Mannina wrightii A. Gray. 8064. Uncommon, Epi/obium ciliatum Raf. ssp. ciliatum [E. woodlands and c,mvons. cali(ornicum Hausskn.]. 7947. Rare, upper Polygala alba Nutt. 7541. Uncommon, grasslands. O'Donnell Canyon. Polygala barbeyana Chod. [.P. longa Blake). Gaura coccinea Nutt. ex Pursh. 7506. 7308. Uncommon, grasslands. Uncommon, grasslands. Polygala hemipterocarpa A. Gray. 7539. Rare, Gaura hexandra t.lrtega SS!). gracilis (Wooton & grasslands. Standley) Raven & Gregory [G. gracilis Polygala obscura Bentham. 7769. Common, Wooton & Standley]. Robinett s.n., October 2, grasslands. 1971. Uncommon, grasslands and woodlands. Polygonaceae Gaura parviflora Douglas ex Lebm. Raynor s.n., October 2, 1971. Common, washes. Eriogonum abenianum Torrey var. abertiar.um. Oenothera caesoitosa Nutt. ssp. marginata (Nutt. Geiger 27. Locally common, grasslands. ex Hooker & Am.) Munz. 7488. Uncommon, Eriogonum polyc/adon Benth. 7870. Common, grasslands and woodlands. roadsides, other disturbed sites. Oenothera (lava (A. Nelson) Garret ssp. flava. Eriogonum wrightii Torr. ex Benth. var. wriS

*Rum ex crispus L. 7574. Uncommon, wet ground rubra Cav. Martin & Stromberg, s.n., around tanks. April 24, 1987. Rare, oak woodlands. Rumex salicifolius Weinm. var. mexicanus Mitracarpus breviflorus A. Gray. Geiger 48. Rare, (Meisn.) C. L. Hitchc. [R. triangulivalvis shallow soils on rock outcrops, Post Canyon. (Danser) Rech. f.]. 8132. Rare, depression below dormitory. Salicaceae Populus fremontii S. Watson. Bock 8271. Portulacaceae Uncommon, Finley Tank, washes and Ponulaca oleracea L. [P. retusa Engelm.]. 7853. canyons. Uncommon, washes. Salix exigua Nun. 7886. Elias 8452. A single Ponulaca suffrutescens Engelm. 7292. Common, dense stand in upper Turkey Creek canyon. grasslanos. Salix gooddingii Ball. Elias 8451. Common, Ponulaca umbraticola Kunth ssp. coronata canyons, Fmley Tank. (Small) Manhews & Ketron [P. coronata Salix lasiolepis Benth. 7568. Uncommon, along Small]. 7294. Common, grasslands. creek in Lyle Canyon. Talinum aurantiacum Engeim. Geiger 6. Salix taxifolia Kunth. Elias 9336. Rare, washes Common, grasslands. , and canyons. Talinum paniculatum (Jacq.) Gaertn. var. paniculatum. Geiger 35. Rare, oak Sapindaceae woodlands. Sapindus saponaria L. var. drummondii (Hooker & Amon) L. D. Benson. Elias 8457. Primulaceae Uncommon, washes. Androsace occidentalis Pursh. 7444. Rare, oak woodlands. Scrophulariaceae Brachystigma wri~htii (A. Gray) Pennell. Elias Ranunculaceae 8930. Rare, oaK woodlands. Anemone tuberosa Rydb. Elias 9327. Uncommon, Castilleja integra A. Gray var. integra. 7457. grasslands. Uncommon, canvons. Clematis drommondii Torrey & A. Gray. Elias Mimulus guttatus DC:. Elias 8406. Common along 8962. Rare, oak woodlands. streams in canvons. Delphinium wootonii Rydb. [D. virescens Nun. Penstemon barbatus (Cav.) Roth ssp. barbatus. ssp. wootonii (Rydb.) Ewan l. Anonymous, Elias 8453. Uncommon, woodlands and Mav 14, 1986. Rare, grassland's near junction canyons. of turkey and O'Donnell Canyon. Penstemon dasyphyllus A. Gray. 7491. Myosuru.s cupularus S. Watson. 7445. Rare, oak Uncommon, 1rrasslands and woodlands. woodlands. Blooming in both the spring and fall at the Ranunculus macranthus Scheele. 7947. Rare, wet Research Ranch. ground, upper O'Donnell Canyon. Schistovhragma intermedia (A. Gray) Pennell. 72i3. Uncommon, woodlands and canyons. Rhamnaceae * Veronica anagallis-aquatica L. Elias 8448. Ceanothus greggii A. Gray ssp. greggii. Elias Uncommon, canyons. 9329. Rare, oak woodlands, Post Canyon. Veronica peregrina L. ssp. xalapensis (Kunth) Rhamnus califomica Eschsch. ssp. ursina Pennell. Elias 8469. Uncommon, springs and (Greene) Wolf. Elias 8404. Rare, O'Donnell canyons. Canyon. Solanaceae Rosaceae Chamaesaracha coronopus (Dunal) A. Gray. Cercocarpus montanus Raf. var.paucidentatus (S. 8121. Uncommon, washes, disturbed areas. Watson) F. L. Martin [C. breviflorus A. Datura ferox L. [D. quercifolia Kunth). 8026. Gray]. Bock 8267. Uncommon, canyons. Rare, washes. Purshia stansburiana (Torrey) Henrickson Datura wrightii Regel [D. meteloides DC]. Elia.s [ Cowania mexicana D. bon ssp. stansburiana 8428. Uncommon, washes, disturbed areas. (Torrey) Jepson]. Elias 8319. Uncommon, Margaranthus solanaceus Schltdl. 7343. limestone outcrops, oak woodlands. Common, oak woodlands. *Rubus discolor Weihe & Nees [Rubus procerus Physalis hederifolia A. Gray var. (endleri (A. P. J. Muell.l. 8797. Abundant at Finley Tank, Gray) Cronq. [P. (endleri A. Gray]. 7602. where dispfacing native vegetation. Uncommon, srrassfands and woodlands. Physalis hederifolia A. Gray var. hederifo!ia. Rubiaceae 8055. Common, _grasslands. Physalis longifolia Nutt. Fugate 3 7, ARIZ. Rare, Diodia teres Walter var. angustata A. Gray. washes. Geiger 47. Uncommon, grasslands and Physalis pubescens L. var. pubescens. 7865. woodlands. Uncommon, limestone outcrops, canyons. Galium wrightii A. Gray. Rare, canyons. Solanum dejlexum Greenm. 8109. Rare, oal< woodlands in Post Canyon.

128 FLORA OF THE APPLETON-WHITTBJ. RES=P-RCr. RANCH + MCLALJGUN, GEIGER, AND BOW:RS

Solanum douglasii Dunal. 7633. Rare, Lyle Commelinaceae Canyon. Commelina dianthifolia Delile var. dianthifolia. Solanum elaeagnifolium Cav. Geiger 5. 7296. Common, QTaSslands and woodlands. Uncommon, grasslands and disturbed areas. Tradescantia pinetorom Greene. Geiger 46. Solanum fendleri A. Gray var. fendleri. 8039. Uncommon, oak woodlands. Rare, canyons. Solanum rostratum Dunal. 8133. Rare, Cyperaceae depressions, disturbed areas. Carex lanuginosa Michx. 7502. Rare, springs at Ulmaceae Finley Taruc Cyperus escu/entus L. 7987. Uncommon, mostly Ce/tis laevigata Willd. var. reticulata (Torrey) L. disturbed areas. D. Benson [C. reticulata Torrey]. 8803. Rare, Cyperus odoratus L. 8131. Uncommon, edges of Post Canyon. tanks. Verbenaceae Cyperus pallidicolor (Kiikenthal) G. Tucker [C. \ flavus (\'ah!) Nees]. 7801. Uncommon, oak Boucheaprismatica (L.) Kuntze. 7768. Rare, Post woodlands. Canyon. Cyperus sphaerolepis Boeckl. [C. rusbyiBritton]. Glandularia bipinnati/ida (Nutt.) Nutt. var. 8028. Common, grasslands and wood.lands. binnatifida. 7581. Uncommon, washes, Cyper.Js siuarrosus L. [ C. aristatus Rottb.J 7i74. grasslands, woodlands. Rare, ost Canyon. Phyla incisa Small. Reported by E. Geiger from Eleocharis palustris (L.) Roemer & J. A. Schultes disturbed areas around Headquarters. fE. rnacrosrachya Britton). 7760. Abundant, Tetraclea coulteri A. Gray. 7280. Uncommon, Finley Taruc and other spnngs. grasslands. Scirp_us acurus Muhl. ex Bigelow. Elias 8409. Verbena gracilis Desf 7603. Locally common in Common along edges o'f reservoir in Post grasslands. Canyon, Fmley Taruc. . Verbena neomexicana (A. Gray) Small var. Scirpus maritimus L. 7363. Uncommon, Fmley xylopoda Perry. 7508. Uncommon, canyons. Taruc Violaceae lridaceae Hybanthus verticillatus (Ortega) Bail!. 7512. Sisyrinchium demissum Greene. 7501. Rare, Common, grasslands. springs at Finley Taru<. Viscaceae Juncaceae Phoradendron villosum (Nutt.) Nutt. ssp. coryae Juncus interior Wieg. var. arizonicus (Wieg.) F. J. (Trel.) Wiens (.P. coryae Trel.). 7866. Rare, on Herm. 7560. Rare, springs at Finley Tank. Quercus arizonica. Juncus mexicanus Willd. e:x J. A. Schultes & J. H. Schultes. 7577. Uncommon, Pos1 Canyon Vitaceae upstream of reservoir. Parthenocissus quinquefolia (L.) Planch. [.P. Juncus saximontanus A. Nelson. 7561. Rare, inserta (Kerner) K. Fritsch]. Rare, upper Finley Taruc. O'Donnell Canvon. Lemnaceae Vitis arizonica Engelm. Elias 8429. Uncommon, canyons. Lemna minor L. Elias 9116. Rare, Post Canyon. Zygophyllaceae Liliaceae Kallstroemia grandiflora Torrey ex A. Gray. Calochonus ambiguus (M. E. Jones) Ownbey. Geiger 33. Uncommon, grasslands. 7484. Rare, grasslands. Kallstroemia parviflora J. B. S. Norton. 7312. Calochortus kennedvi Porter. Liston 73 9-17. Uncommon, grasslands. Uncommon, grasslands. Dichelostemma pulche/lum (Salish.) Heller var. pauciflorum (Torrey) Hoover. 7449. ANGIOSPERMS - MONOCOTYLEDONS Uncommon, grasslands. Agavaceae Echeandia flavescens (J. A. Schultes & J. H. Schultes) Cruden [Anthericum torreyi Baker). Agave palmeri Engelm. Locally abundant on Geiger 23. Locally common, grasslands. ridgetops. Milla b{jlora Cav. 7270. Rare, oak woodlands. Agave parryi Engelm. var. huachucensis (Baker) Little. Rare, a few colonies in grasslands in Nolinaceae southeastern part of the Research Ranch. Yucca elata (Englem.) Enge!Jn. var. elata. Dasylirion wheeleri S. Watson. Locally abundant, Uncommon, grasslands. grasslands. Yucca schottii Engelm. Uncommon, canyons and Nolina microcarpa S. Watson. Common, woodlands. grasslands and woodlands. -:;-:------·------

FLORA OF THE APPLETON-WHITTEU RESEARCH RANCH +McLAUGLJN, GEIGER, AND BO'f>cRS 129

Poaceae *Cynodon dacrylon (L.) Pers. Raynor s.n., no *Agrostis stolonifera L. 7946. Locally common, date. Abundant on check darns, uncommon canyons. elsewhere. Aristida adscensionis L. 7770. Uncommon, Digitaria califomica (Bentham) Henrickson grasslands. f Trichachne californica (Bentham) Chase]. Aristida divaricata Hwnb. & Bonpl. ex Willd. . '(omJinson 785. Locally common, grasslands. Reichenbacher 15 71. Abundant, grasslands. D1gztana cognata (J. A. Schultes) Pilger Aristida havardii Vasey [A. barbata Foum.]. fleptoloma cognata (].A.Schultes) Chase]. . T_omlinson 7i7. Rare, grasslands. lW35. Rare, grasslands, limestone outcrops . Anstida orcuttzana Vasey. Tomlinson 766. Rare, *Echinochloa crus-galli (L.) Beauv. 7175. grasslands. Uncommon, wet areas. Aristida purpurea Nutt. var. longiseta (Steud.) Elymus canadensis L. 7882. Common along Vasey [A. longiseta Steud.]. 7540. Locally stream in upper O'Donnell Canyon, rare abundant, crasslands. elsewhere. Aristida puryurea Nutt. var. nealleyi (Vasey) Elymus elymoides (Raf.) Swezev [ Sitanion hystrix Allred [A. glauca (l'Jees) Walp.]. 7301. (Nutt.) J. G. Smith]. 74S7. Uncommon, Uncommon, calcareous grasslands. canyons. Aristida purpurea Nutt. var. parishii (A. S. Elymus trachycaulus (Link) Gould ex Shinners H1tchc.) Allred [A. parishii A. S. Hitchc.]. ssp. trachycaulus [Agropyron trachycaulum 7762. Uncommon, grasslands. (Link) Malte]. 7559B. Rare, spring at Finley Aristida temipes Cav. var. hamulosa (Henrickson) Tank. Trent [A. hamulosa Henr.]. 8053. Common, Elyonurus barbiculmis Hack. 7782. Uncommon . g_rassland~, woodlands, and canyons. oak woodlands. ' Anstzda tem1pes Cav. var. temioes. Tomlinson Enneapogon desvau.xii Desv. ex Beauv. 7858. . 797. Common, grasslands and woodlands. Uncommon, calcareous irrasslands. Bothriochloa barbinodis (Lag.) Herter *Eragrostis cilianensis (Al[) Lut. ex Janchen. [Andropogon barbinodis Lag.]. 7329. 7_335 . Common, grasslands and disturbed Abundant, v-asslands and woodlands. sites. *Bothriochloa -ischmaeum (L.) Keng. Rare, a *Eragrostis curvula (Schrad.) Nees var. conferta single patch found near no::th entrance to the Stapf. 7289. Abundant, grasslands on :Korth Research Ranch by Roben Whitcomb. Mesa and East Mesa. - Bouteloua aristidoides (Kunth) Griseb. var. *Eragrostis curvula (Schrad.) Nees var. curvula. aristidoides. 8066. Uncommon washes Rar~, reported from Lyle Canyon by Robert grasslands. ' ' WbJtcomb. Bouteloua chondrosioides (Kunth) Bentb. ex S. Eragroscis intermedia A. S. Hitchc. 7268. Watson. 7290. Abundant. grasslands. Abundant, grasslands and woodlands. Bouteloua curt!pendula (Michx.) Torrey var. *Eragrostis lehmanniana Nees. Tomlinson 795. curtipendula. 7269. Abundant, grasslands, Locally abundant on North Mesa, common woodlands, and canvons. elsewhere on mesas and ridgetops. Bouteloua eludens Griffiths. Geiger 40. Eragrostis pectinacea (Michx.) Nees ex Steud. Uncommon, dry sI02es in canyons. var. pectinacea. 8058. Uncommon, mostly in Bouteloua eriopoda (Torrey) Torrey. 7285. disturbed sites. Locally common, calcareous grasslands. *Eragrf:>Stis superba Peyr. Rare, reported by E. Bouteloua grac_,ilis (Willd. ex Kunth) Lag. ex Geiger from East Mesa. Gnffiths.. , 2 79. Abundant in grasslands, Eriochloa acuminata (J. Pres!) Kuntb var. minor common m woodlands. (Vasey) R. B. Shaw [£. gracilis (Fourn.) Bouteloua hirsuta Lag. var. hirsuta. 7311. Hitchc. var. minor (Vasey) Hitchc.]. 8042. Common, grasslands and woodlands. Common, grasslands. Bouteloua radicosa (Fourn.) Griffiths. Geiger 42. Erioneuron pulchellum (Kunth) TateokafTri dens Uncommon. oak woodlands. pulchellus (Kunth) A. S. Hitchc. . 7341. Boutel~ua r_epens (Kunth) _Scribn. & Merr. fB. Locally common, calcareous grasslands. jiliform1s (Foum.) Gnffiths]. Geiger 39. *Festuca pratensis Huds. fF elatior L.]. 7509. Uncommon, grasslands. Abundant in Post Canyon immediately Brachiaria arizonica (Scribn. & Merr.) S. T. upstream of reservoir. Blake fPanicum arizonicum Scribn. & Merr.]. Hackelochloa granu/aris (L.) Kuntze. 8061. 7989. Common, grasslands. Uncommon, grasslands. Bromus anomalus Rupr. ex Foum. 7805. Heteropogon contortus (L.) Beauv. ex Roemer & J. A. Schultes. Elias 8969. Locally common, Uncommon. washes and canyons. grasslands. *Br omus cathariicus Yahl. 75 j 1. Uncommon, wet ground in canyons. Hilaria belangeri (Steud.) Nash var. belangen·. Cenchrus carolinianus Walter [C. pauciflorus 732 7. Local!¥ common calcareous grasslands. Benthan1l. Elias 8357. Uncommon, washes, Hilaria mucica (Huckl.) Be~th. 7763. Uncommon, disturbed" areas. grasslands. Chloris virgata Swartz. Tomlinson 792. Common, Hordeum a_rizonicum Covas. 7890. Rare, canyons. Hordeum ;ubatum L. ssp. jubatum. Elias 8424. washes, disturbed areas. Uncommon, canyons.

------"-= -- ·- - -··-::==== 130 FLORA OF THE APPLETON-WHITTE..L RESEARCH RANCH +M;U.UGUN, GEIGER, t.ND BOWERS

Leptochloa dubia (Kunth) Nees. 7334. Common, Sporobolus cryptandr.is (Torrey) A. Gray. ;"869. grasslands and woodfands. Common, woodlands and gras_slands. Lycurus setosus (Nutt.) C. G. Reeder. 7287. Sporobolus wrightii Munro ex Scnbn. Abundant, Common, grasslands. washes. Muhlenbergia arenicola Buckl. Tomlinson 832. Stipa neomexicana (Tbunb.) Scribn. 7496. Locally Locally common, Bald Hill. common calcareous _grasslands. Muhlenbergia arizonica Scribn. 7771. Trachypogo,; secundus (J. Pres!) Scribn. i781. Uncommon, canyons. Uncommon, oak woodlands. Muhlenbergia asperifolia (Nees & Meyen ex Tridens muticus (Torrey) Nash var. muticus. Trin.) Parodi. 8112. Rare, one patch in Tomlinson 830. Uncommon, canyons. grassland near north entrance to the Research *Triticum aestivum L. 7504. Rare, disrurbed sites. Ranch. Vulpia octojlora (Walt.) Rydb. [Festuca oczojlora Muhlenbergia emersleyi Vasey. 7342. Walt.]. 7448. Uncommon, grasslands. Uncommon. oak woodlands. Muhlenbergia jragilis Swallen. Geiger 49. Potamogetonaceae Uncommon. !rra.Sslands.' Potamooeton foliosus Raf. var. foliosus. 7565. Muhlenbergia rigens (Benth.) A. S. Hitchc. 7876. Rar~. standing water in Post Canyon. Abundant, canyon bottoms. Muhlenbergia rigida (Kunth) Trin. 7360. Rare, Typhaceae calcareous grasslands. Muhlenbergia - tenuifolia (Kun th) Trin. Typha domingensis Pers. Geiger 8. Rare, Post . [Muhlenbergia monticola Bucl

DEMPSTER, L., and E.T. TERRELL. 1995. Vascular McLAUGHLIN, S. P. I 992. Are floristic areas Plants of Arizona: Rubiaceae. Journal of the bierchically arranged? Journal of Arizona-Nevada Academy ofScience 29:29- Biogeography 19: 21-32. 38. PINK.AVA, D. J. 1999. Vascular Plants of Arizona: ECKENWALDER, J. E. 1992. Vascular Plants of Cactaceae part three: Cylindropuntia. Journal Arizona: Salicaceae-Populus. Journal of the of the Arizona-Nevada Academy of Science Arizona-Nevada Academy of Science 26:29- 32:32-47. 33. RlCHARDSON, M. L., S. D. CLEMMONS, and J. C. FLORA OF NORTH AMERICA EDITORIAL WALKER. 1979. Soil survey ofSanta Cruz and COMMITIEE (EDS.). 1993. Flora of North Parts ofCochise and Pima counties, Arizona. America north of Mexico. 'flol. 2. Washington: Soil Conservation Service. Pteridophytes and gymnosperms. Oxford RzEDowsKI, J. 1993. Diversity and origins ofthe University Press, New York. p_banerogamic flora ofMexico . Pp. 129-144 in HAWKSWORTH, F. G., and D. WIENS. 1994. T. P. Ramamoorthy, R. Bye, A. (ot, and J. Fa Vascular Plants of Arizona: Viscaceae. ( eds.), Biological diversity ofMexico: Origins Journal of the Arizona-Nevada Academy of and distn.bution. Oxford University Press, Science 27:241-245. New York. KEARNEY, T. H., and R. H. PEEBLES. 1960. SELLERS, W. 0., R.H. HILL, and M. SANDERSON­ Arizona flora. Second Edition. University of RAE. 1985.Arizona climate: The first hundred Califorma Press, Berkeley. · years. The University of Arizona, Tucson. MAsoN, C. T., Jr. 1998. Vascular Plants of SIMPSON, G. G. 1980. 'Why and how: Some Arizona: Gentianaceae. Journal of the problems and methods in historical biology. Arizona-Nevada Academy of Science 30:84- Pergamon Press, Oxford. 95. SU'l','DELL, E. 1994. Vascular Plants of Arizona: MCLAUGHLIN, S. P. 1986. Floristic analysis ofthe Asclepiadaceae. Journal of the Arizona­ southwestern United States. Great Basin Nevada Academy ofScience 27:169-187. Naturalist 46:46-65.