COLORADO rNATI VE PLANT -SOCIETY NEWSLETTER Volume 10, Number 3

May 1986 "DEDICATED TO THE APPRECIATION AND CONSERVATION OF THE COLORADO FLORAl!

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ACTIONS FROM THE BOARD! \fuat's new from your Board of Directors? CONPS is to have a display at the Alpine 86 conference in Boulder, June 28 - July 2. Anna Thurston is coordinator, so if you would like to help, please call Anna at 433-3705. TALLGRASS PRAIRIE RESEARCH Planning goes forward on the Rare Plant Publication. Anyone A management plan for the ~,interested in joining the working Colorado Tallgrass Prairie Natural ~ group will be most welcome. Please Area is nearly complete. The Colo­ call Eleanor Von Bargen, 756-1400. rado Natural Areas Program, City of The first effort will be in assemb­ Boulder and other pertinant agen­ ling photographs and technical data cies and organizations, including on the species selected for inclu­ the Colorado Native Plant Society, sion. This is one of the larger have developed grazing and burning enterprises that CONPS has prescriptions for the 270 acre undertaken, and the board solicits natural area. Intensive monitoring your active involvement! will determine if the types of After a highly successful management are suitable for these first year of workshops, with relict tallgrass communities. Con­ excellent speakers and challenging tact Virginia Crosby, 666-5303, if topics, the board decided to insti­ you are interested in working on tute modest fees for workshops in the floristic survey. Permanent the future, to cover expenses. vegetation transects will be estab­ Registration procedures will be lished and sampled. If you would streamlined, so that more members like to assist with vegetation will be able to take advantage of sampling, contact Sue Galatowitsch, the workshops. 459-3243. Work on the floristic Questions or comments about survey will be conducted throughout what your Society is doing (or NOT the growing season. Vegetation doing)? THEN CALL A BOARD MEMBER. sampling will occur in mid-August. Ann Cooper, Secretary No experience necessaryl CLOUD RIDGE NATURALISTS FIELD DISCOVERY SEMINARS 1986

Once again the Cloud Ridge Lichens and Bryophytes Naturalists are offering a series September 13-14, 1986 of educational field seminars. They will be taking interested This seminar provides an in­ participants from the Colorado High troduction to the identification of Country to the islands of Hawaii. the lichens and bryophytes asso­ We would like to draw your atten­ ciated with Colorado's subalpine tion to two seminars on Colorado forests and wetlands. We will flora taught by Dr. William Weber: concentrate activities in the Win­ ter Park-Tabernash area and the Flora of the Plateau Country: Fraser Experimental Forest. In Dinosaur National Monument addition to learning how to recog­ June 8-11, 1986 nize many of the most common li­ Dinosaur National Monument chens, mosses, and liverworts, we sprawls across northwestern Colora­ will also study the ecological do and northeastern Utah, encompas­ distribution and life histories of sing the deeply cut canyons of the these fascinating plants. Price: Green and Yampa Rivers. Though the $100 ($50 deposit). mountain forests and meadows are missing from this high-desert land­ For more information, contact Aud­ scape, flowering plants are every­ rey D. Benedict, Director, Cloud where: from the near-vertical Ridge Naturalists, Overland Star cracks in canyon walls to the Route, Ward, Colorado 80481, 459­ plnon-juniper woodlands. High­ 3248. lights will include visits to Irish Canyon, E.ch~~Fa~.k-L-.___tne~Gates of Lodore, and Blue Mountain. Price: --~---'---"------$150 ($50 deposit)

PHOTOS NEEDED Dr. Robert H. Mohlenbrock is prepa­ ring a wildflower guide for the MacMillan Publishing Company. If you have high quality close-up wildflower photos, contact Dr. Moh­ lenbrock at the Department of Bota­ ny, Southern Illinois University at Carbondale, Carbondale, IL 62901.

CRESTED BUTTE WILDFLOWER FESTIVAL The Crested Butte Chamber of Commerce is sponsoring a Wildflower Festival on July 18-20. The festi­ val will include workshops on wild­ flower natural history, photogra­ phy, landscaping/planting, and tours in the Crested Butte area. For further information, contact the Festival at P.O .. Box 1288, Crested Butte, CO 81224. 2 FIELD TRIPS 1986

Location: Second Creek Trail, Location: Chautaugua Park, Boulder r--- Berthoud Pass. Date: Saturday, August 30 Date: Sunday, July 20 Leader: Tina Jones, 722-8514 Leader: Bob Heapes Meet: In front of Kinko's in Meet: In the Point of Boulder. Take the Baseline- Geological Interest north parking University of Colorado exit off the lot (1-70 exit near Morrison). 6:30 Boulder Turnpike. Kinko's is in am the shopping center at the corner Second Creek originates in a of Baseline and Broadway. 9:00 am. beautiful subalpine bowl that is This trip will offer partici­ perched 1500 feet above the Ber­ pants an opportunity to learn human thoud Pass Road. Popular with and animal uses of Colorado foot­ wilderness skiers in winter, this hill plants. Find out how some area is a lush meadow filled with birds and animals can feast on over seventy varities of blooming poison ivy berries, and on some of plants in July. We will see many the toxic mushrooms which would moisture-loving plants including make us humans ill. The day will mertensia, Caltha, gentians, Parry also cover edible, medicinal, folk­ primrose, Mimulus and Penstemon lore, and American Indian uses of whipEleanus. Bob will provide an wild plants. This is the time of extensive plant list for this area. year to learn and observe the seed­ Participants must be in good heads, plus berries of certain physical condition due to the high species. Bring lunch, water, and altitude and elevation gains of expect to spend 3/4 of a day. Second Creek. To avoid missing the trailhead, we will reconvene at the summit of Berthoud Pass and caravan "back to the starting point. Bring miniature bunches of grapes. As a fortifying lunch, water, rain­ the spore cases mature, they turn gear, and good trail boots. Bob is brown and eventually open. They a longtime Society member, and is are usually the first part of the also an experienced naturalist and plant to be seen because they stand photographer (bring your cameras!). above the surrounding small plants. Register by calling Nevin BeBee, Unfortunately, in late summer there 733-1038 (leave message on recor­ are other plants, particularly der) • small goldenrod and dock that look very much like moonworts. Search­ ing for moonworts can be tedious and often unrewarding, but when you LOOK FOR MOONWORTS do find them, you may be surprised at their abundance in limited a­ Colorado's mountains are the reas. If you locate any, contact home of several species of moon­ Peter Root at 4915 VV. 31st Avenue, worts, small ferns of the genus Denver 80212. Botrychium. We still know very little about their distribution because they are seldom seen. They are most often found in clearings or disturbed roadside areas in the subalpine zone, usually associated with shrub willows or small coni­ fers. Moonworts.are usually about ~two inches taIlor smaller. The part we see is the leaf which is divided into a lobed sterile por­ tion and fertile segment bearing clusters of spore cases resembling 3 Colorado Native Plant Society Field primary responsibility for species Inventories and sites in one or more of the nine regions shown in Figure 1. The Society has undertaken a varie­ This approach provides an opportun-~' ty of field inventory projects over ity for local projects, and reduces the past several years. The very the amount of travel required to successful Fl'orissant National Mo­ visit study locations. Initial nument inventory project, now in responsibilities are as follows: its 4th year, has compiled a list Boulder and Fort Collins: 1. of nearly 400 species. A Society Northwestern; 2. Northcentral: 3. effort to extend our knowledge of Northeastern. the range of the tiny annual, Pha­ Denver Metro: 5. Central; 6. celia submutica resulted in the East Central. discovery of several additional Colorado Springs: 8. South­ populations beyond the single known central; 9. Southeastern. locality near DeBeque, Mesa County. Four Corners: 4. West Cen­ Because of the membership's conti­ tral; 7. Southwestern. nued interest, we plan to extend our efforts to new projects. We 3. CONPS will assign a liason with support the Colorado Natural Areas the CNAP to disseminate information Inventory Program which is the to the Chapters, and to insure that central repository for native plant information collected by CONPS mem­ and plant association data for the bers is reported. The specific state. We also offer our skills responsiblities of the liason are for conducting inventories for as follows; state parks, state natural areas, a. The liason will compile and national parks and monuments. descriptive informaton and collec­ tion location information from the The following discussion outlines CNAP and other sources, and distri- ~ some specific

2. Each CONPS chapter is assigned The first liason will be Scott 4 Ellis, 1011 West Mountain Ave., ment status, existing populations Fort Collins 80521, 493-8878 (w), and to locate additional popula­ ~ 493-6069 (h). A volunteer is tions: plant associations need ef­ . needed from the Denver area to forts to locate high quality exam­ assist compilation of background ples: parks need general invento­ information. ries of all plant groups, and habi­ tat summaries. Plant species need efforts to docu~

Table 1. Plant Associations: List of Priority Species, Plant Festuca arizonica/ Communities, and Parks for CONPS Muhlenbergia montana Field Inventories (montane grassland) Pinus ponderosa/Leucopoa 1. Northwestern kingii Plant Species: 6. East Central Lesquerella congesta Plant species: Lesguerella parviflora Ambrosia linearis Physaria obcordata Plant Associations: Oenothera acutissima Andropogon scoparius Thalictrum heliophilum (loess prairie) 2. North Central 7. Southwestern Plant Species: Plant species: Aletes humilis Lesquerella pruinosa* Gaura neomexicana ssp. Sclerocactus mesae-verdae coloradensis (pollinators)* Phacelia formosula Atriplex pleiantha Plant Associations: Plant Associations: Artemisia tridentata spp. Hilaria jamesLl (Grand vaseyana/Leucopoa kingii Basin grassland) Parks: Parks: State Forest near Walden Hovenweep National Golden Gate Canyon State Monument Park 8. South Central 3. Northeastern Plant Species: Plant Species; Neoparrya lithophila Eustoma grandiflora Parthenium tetraneuris Spiranthes magnicamporum Cleome multicaulis Plant Associations: Rorippa coloradensis (one Populus deltoides/Panicum historical location, virgatum possibly extinct) 4. West Central Plant Associations: Plant Species: Juniperus monosperma- Astragalus microcymbus Pinus edulis/Stipa Thalictrum heliophilum scibneri Lomatium concinnum 9. Southeastern Lygodesmia doloresensis Plant Species: 5. Central Pellaea glabella Plant Species: Pellaea atropurpurea Eutrema penlandii Notholaena standleyi Braya humilis ssp. Plant Associations: ventosa Juniperus scopulorum/ Parthenium tetraneuris Rhus trilobata Mentzelia densa (relocate historical sites and new locations) see Figure 1. On page 6 5 Figure 1. r COLORADO

1, NonhwHlem 2. NorU'H::tntr~1 3. Non~.~1~ 4, W"tcnllf~1 .1, Ct-ntnJ 6. E..oa£tunlnl 7, Soulhwnlt'm 8, Suuthao,,::..l 9. Soulht".ut~

JUNCUS GALLS a complete herbarium specimen of the plant on Which it occurs. The Every season someone brings in CU Herbarium will be glad to re­ a specimen of Juncus, usually Jun­ ceive them and perhaps make identi­ cus torreyi or J. nodosus, in which fications. inflorescence is transformed - William Weber into a mass of leaf-sheaths, usual­ Prof., Curator CU Herbarium ly forming a bunch of tight cylin­ ders. These are very striking, but hardly anyone knows just what they are or what causes them. These are Most of our paper today is galls caused by a Hemipteran bug, made from wood, but for most of called the Sedge Psyllid, Livia history it was made of other fi­ maculipennis Fitch. bers. Papyrus, the IIpaper" of the Galls are very interesting ancient Egyptians, was made from things to study and collect. They the pith of a sedge, Cyperus papy­ are called zoocecidea. The IIBible" rus. There are at least 3000 (and for them is Ephraim Porter Felt, perhaps even 4000) species of Key to American Insect Galls. New sedges, but this is the only one York-State Museum Bulletin No. 200: found useful for paper-making. 5-310. 1917. Although an old work, it has not been superseded, and is a very useful if rare book. The term II ca-;:-kin II literally It not only contains illustrations has the meaning "kitten". The term of most common galls, but has a was first used in 1578 to describe host index that makes identifica­ the inflorescence of the pussy tion easy. To collect galls, make willow. 6 CONPS Workshops ACID RAIN IN COLORADO FROM A MEXICAN SMELTER? The next CONPS workshops in plant identification, taxonomy, and A draft agreement between the ecology are: U.S. Environmental Protection Agen­ cy and Mexico would allow a hugh Sat., Aug. 23 smelter in northern Mexico to begin Field Identification of Grasses operations without control of sul­ Leader: Dr. Janet Wingate fur dioxide emissions which are estimated at 500,000 tons per year. This workshop will be held entirely As a result, total sulfur dioxide in the field at Roxborough State emissions in the Rocky Mountains Park where participants can study and Intermountain West are projec­ live, fruiting grass plants. ted to increase by 25%. Some pro­ Registration fee: $8 (members) $16 testing environmental groups and (non-members). governors of southwestern states suggest that this additional pollu­ Sat., Sept. 27 tion load will create acid lakes in The Indian Paintbrushes the Rockies within 10 to 20 years. Leader: Dr. Miriam Denham They call for controls on sulfur dioxide emissions before start-up There are a dozen or more species of the smelter is permitted. of Indian paintbrushes (genus Cas­ tilleja) in Colorado. These plants with their brightly-colored bracts and small flowers look distressing­ ly alike. Registration fee: $8 Cereals, generally thought of r-'(members) $16 (non-members). as large-flowered grasses suitable for human consumption, are named To register, contact CONPS workshop for Ceres, the Greek goddess of the coordinator Bill Jennings, 360 Mar­ corn and one of the supreme dieties tin Drive, Boulder, 80303, 494­ of the earth. She is usually port­ 5159. Please register promptly. rayed accompanied by heads of The workshops fill up fast. Future wheat. workshops on the Gentians and para­ sitic and saprophytic flowering plants are planned.

Olive oil, derived from the fruit of Olea europea, is the most important plant-produced oil in the world, but is little used in the u.S. The plant, a medium-sized tree, apparently was domesticated about 7000 years ago on the Persian desert border. Because they are adapted to a Mediterranean climate with dry summers, olive trees now are being grown successfully in some parts of California as well as ~any other parts of the world. Why .lot try some Californian olive oil, now available in Colorado specialty shops, as a cooking substitute for butter or in a vinaigrette for your spring salads? 7 OF'F'IC~~RS COMMITTEES President Eleanor Von Bargen 756-1400 Conservation Sue Martin 226-3371 Vice-President Steve O'Kane 744-2479 Editorial Peter Root 433-9340~ Secretary Ann Cooper 447-9169 Education Miriam Denham 442-1020 Treasurer Myrna p. Steinkamp 226-3-371 Field Trips Nevin BeBee 733-1038 Florissant Mary Edwards 233-8133 BOAM OF' D! REC'!'ORS Horticulture IX Anna Thurston 433-3705 Carol Brandt (87). F't. Collins 484-9251 Rehabilitation Ann Cooper (86) Boulder 447-9169 Membership Myrna Steinkamp 226-3371 Virginia Crosby (87) Lafayette 666-5303 Publicity Miriam Denham (87) Soul,der 442-1020 Workshops Bill Jennings 494-5159 Scott Ellis (86) I:t. Collins 493-6069 Bill Jennings (86) Ilotlldf'r 494-5159 Velma Richards (86) Englewood 794-5432 Les Shader (87) Ft: Collins 484-0107 NEWSLETTER CONTRIBUTIONS Anna Thurston (06) Denver 433-3705 Please direct ell contributions to the newsletter Eleanor Von Bargen (87) Denver 756-1400 to Feter Root 4915 West 31st Avenue Chapter Presidents (Members of Board) Denver, CO 80212 Boulder Sue Oalatowltsch 459-3243 Deadlines for newsletter materials are one month Colo. Springs p~ior to publication dates, which are Januar~ Denver Metro Nevin BeBee 733-1038 Ma~ch 15. May 15. August 15. and November 15. Ft. Collins Carol Brandt 484-9251 There is a special need for short filler items such as some unusual information about a plant. a SCHEDULE OF MEMBERSHIP FEES little known botanical term, etc. Please include Life $,150.00 F'amily or Dual $12.00 author's name and address, but items will be Suppor-ting 50.00 Individual 8.00 printed anonymously if requested. Organization 25.00 Student or Senior 4.00 MEMBERSHIP RENEWALS AND INFORMATION Please direct all other inquiries regarding the Please direct all membership applications. renew­ Society to the SI~CRETARY in care of the Society' s als and address changes to the MEMBERSHIP chair­ mailing address. person, in care of the Society's mailing address.

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RETURN AND MAILING ADDRESS Non-profit Organization Colorado Native Plant Society U.S. Postage P.O. Box 200 PAID Permit #1475 Fort Collins, Colorado 80522 Denver. Colorado Time Value Material - Mailed May 14

SALLY WHITE 17677 TYCOON AVE MORRISON CO 80465

Iiiii ENDANGERED FLO R A PUB LIe A T ION

OVERVIEW ,,--. The State of Colorado needs a comprehensive, readable, well­ illustrated publication on Colorado's endangered flora. Colorado has never had a complete description of the state's endangered flora which is useable in the field and of interest to the general public. Almost 100 plant species are endangered in Colorado. A pUblication on Colo­ rado's endangered flora will enable the citizens of Colorado to under­ stand where the plants are found, what the plants need to live, and what threatens their existence. A publication on Colprado's endan­ gered flora will lay the groundwork for enactment of legislation by the Colorado General Assembly to protect rare plant species in Colora­ do.

The endangered flora publication will contain an overview of the conservation of rare plants in Colorad.o and descriptions. and illustra­ tions of each species. Work on the endangered flora publication began in April 1986. Publication is scheduled for May 1987.

Research and Photography The Colorado Native Plant Society and Colorado Natural Areas Program will compile information ..on the biology, geography I and histo­ ry of each species. Photographs will be contributed from the Colorado Native Plant Society and other botanists. A research committee has been formed to coordinate the gathering of information. One person is needed to co-chair the committee with Myrna Steinkamp. Committee members are also needed. Help is also needed on the photograph committee. This group will review photos from existing collections and coordinate work on photo­ graphs that need to be taken. A co-chair is being sought to assist Jim Borland. Committee members are also being sought.

Call Eleanor Von Bargen, 756-1400, to offer assistance.

Fundins $30,000 is needed to publish the Endangered Flora book. The Colorado Natural Areas Program is seeking funds from foundations and individuals. The Colorado Native Plant Society has pledged $1000 from the treasury and hopes to raise an additional $1000 from concerned members. A donation of $25.00 or more will entitle an individual to a complimentary copy of the monograph. Please send contributions to: "Rare Plant Monograph" Colorado Native Plant Society P.O. Box 200 Fort Collins, CO 80522

-- .~~------.-- _._-----­ EUTREMA PENLANDII RollIns BRA PICTURE THIS! E. edwardsll ssp. p. FRASERA COLORADENSIS (Rodgers) D.M. Post GEN Work on the monograph of rare Colorado plants Is progres­ GAURA NEOMEXICANA Woot. ssp. COloRADENSIS ONA sIng rapIdly, but to ~et the deadlInes we've set far our~ (Aydb.) Raven et Gregory selves 10M! need your help. Below 15 oil ll~t of the Speehl$ to GENTIANA NUTANS ledeb. GEN be Included In the monograph. Before the manuscrIpt goes to Chondrophylla n. prl!s'h several Mgh qualHy 35. s1tde~ are needed for each GENT lAMELLA TORTUOSA (M.E. Jones) J.M. GIllett GEN species. The Collll"ado NatlYe Plant SocIety and, the Colorado GILIA STENOTHYRSA A. Gray PLM Nat,ural Areas Program request that yo~ und slIdes of any of IpolOOpsh s. these spe"e6 to: "Rar. Plant ~onGgraph· HACKEllA GRACILENTA (Eastw.) I.M. Johnst. BOR ColoTado Nattve Plant SocIety HAPLOPAPPUS FREHONTII A. Gray ssp. H~HOCEPHAlIJS AST 'P.O. Box 200 IA. Hels.) H.M. Hall fort, Coll'n5,' CO 80522 Oonopsls follosa var. m. Include your,nime and the specIes on each slIde. Photographs HYPOXIS HIRSUTA (L.) CovIlle lIL appearIng In the monograph 'wIll be credited and all Slides LESQUERELLA CONGESTA RollIns 8RA wIll be returned after the monograph goes to preSS In the LESQIJERELlA PARVlfLoRA RollIns BRA sprIng of 1981. Your orIgInal slIdes wIll be carefully LESQUERELLA PRUINOSA Greene BRA handled and stored. Photos not Included In the monograph wIll LISTERA CONVALLARIOIDES (Sw.) Nutt. ORC help artIsts preparIng lIne, drawIngs. Please consIder takIng LOMATIUM CONCIHNUM (05terh.) MathIas et Constance API photos of specIes for whIch you currently have no slides. LOHATIUM EASTWOOOAE (C. et R.) Macbr. API ~odachrome 25 usually produces the best fInal product. Aletes e. I Information on the locatIons of specIes can be obtaIned by lOHATIUM LATILOBUM (Rydb.) MathIas API callIng the Colorado Natural Areas Inventory (303) 866-3311. Aletes 1. LUPINUS CRASSUS Payson fAB LYGOoESMIA oOLORESENSIS TOIlIb AST MALAXIS BRACHYPODA (A. Gray) Fern. ORC TAXON fANILY M. monophyllos ssp. b. MENTZELIA ARGILLOSA J. oarl. LOA ALEIES HUMILIS C. et R. API Nuttal1a a. AMBROSIA LINEARIS (Rydb.) Payne AST MENTZELIA DENSA Greene LOA ARALIA RACEMOSA L. ARL MIMULUS EASTWOODIAE Rydb. SCR ARMERIA MARITIMA (Miller) Wlldenow ssp. SIBERICA PLB MIRA8lLIS ROTUNDIFOLIA (Greene) StandI. NYC (Turez. ex Bolss.)'Hylander Oxybaphus ,r. A. scabra ssp. slberlca NEOPARRYA llTHOPHILA MathIas API ASCLEPIAS UMCIAliS Greene ACL Aletes 1. ASPLENI~ ANDREWSII A. Hels. ASL NiO'ARRYA MEGARRHIZA (A. Nelson) W.A. Weber API ASTRAGALUS DUCHESNENSIS M.E. Jones fAll , Aletes m. ' 'ASTRAGALUS HUMILLIMUS A. Gray fAD OENOTHERA ACUTISSIMA W.l. Wagner ONA ASTRAGALUS llNlfOllUS Oster~. fAD 'ONOeLEA SENSIBILIS L. ASP A. rafaelensls PARTHENIUH ALPINUM (Nutt.) T. et G. AST AStR~GAUJS"MI C/!/lcV"60Silarrieby"" •..-.:, '•.. ".:;, ",","'" ~~~ ~o~~ ..... -;r----- ~--_-­ ASTRAGAL~ MUSINIENSIS M.£. Jones fA8 PARTHENIIJM TETRAHEURIS Barneby ASl ASTRAGALUS NELSONIANUS Barneby fAB Bolophyta t. ASTRAGALUS OSTERHOUTII M.E. Jones fA8 PEDIOCACTUS KNOWLTONII Benson CAC ASTRAGALUS PlATllNSIS Nutt. ex T. ex G. fAB PENSTEMdN DEGENER I Crossw~lte SCR ASIRAGALUS' SCHMOlLAE C.L. Porter fA8 PENSTEMoN GIBBINSII Dorn SCR ASIRAGALUS SESQUlflORUS S. Wats FA8 PENSTEMON GRAHAMII Keck ex Graham seR BRAYA HUMILIS (C.A. Meyer) Roblnso~ ssp. VENTOSA RollIns liRA 'PENSTEMON PARVIfLORUS Pennell SCR CIRSIUM OWNBEYI Welsh AST P£NST£MoNSCARIOSUS Pennell var. AlBlfLUVIS SCR CIRSIUlPEjp~EXANS (Rydb.) Petrak AST (England) N. Holmgren ClEOME MULTICAULIS Sesse et Moelno ex DC. CPP P. alb1fluvls C. sonorae PHACElIA fORMOSULA Osterh. HYD CONIMITEllA WILLIAMSII (D.C. Eaton) Rydb. SAX PHACELIA SUOMUTICA J.T. Howell HYO DRABA JUNIPERINA Dorn BRA PHYSARIA BELLII MullIgan BRA DROSERA ROTUNDlfOliA L. DRS PHYSARIA OBCORDAlA Rollins BRA DRYOPTERIS EXPANSA (Presl.) Jenkens et Jermy ASP PTILAGROSTIS PORTER I (Rydb.) W.A. Weber POA [CHINOCEREUS TRIGlOCHIDIATUS Engelm. var. INERMIS CAC P. monghollca ssp. p./Stlpa p. (I(. SchUlll.) Arp 'RORIPPA COLORADENSIS stuckey BRA EPIPACIIS GIGANTEA Dougl. ex Hook. ORC SALIX CANDIDA flugge SAL ERIGERON HUMIliS Graham AST SALIX LANAIA L. ssp. CALCICOLA (fern. et Weg.) Hulten SAL ERIGERON KACHIHENS'IS We Ishet. Moore AST *SCIRPUS CAESPITOSUS L. CYP ERIGE1WN lANAIUS Hook. AST' Baeothryon c. £RIOGONUM AeAULE Nutt'. PLG SCIRPUS PUMILUS Vahl. CYP ERIOGONUM BRANDEGEI Rydb. PlG Baeothryon p. ERIOGONUM ClAVElLATUM Salll PLG SCLEROCACTUS GLAUCUS (K. Schum.) 8enson CAC ERIOGONUM EPHEOROIOES Reveal PLG SCLEROCACTUS MESAE-VERoAE (BoI55. et DavIdson) 8enson CAC ERIDGONUM PAUCIFlORUM Pursh var. PAUCIFlORUII PLS SPHAEROMERIA CAPITATA Hutt. AST ERIOGONUM PELINQPHILUM Reveal IILG TanacetUlll c. , [RIOGONUM SAURTNUM Reveal PLG SPIRANTHES DllUVIALIS Shevlak ORC ERIOGONUM VIRIDUlUM Reveal PLG THALICTRUM HELIOPHILUM WIlken et DeMott RAN ERIOPHORUM ALTAICUM Melnsh. var. NEOGAEUM Raymond ,CY~ TRIfOLIUM ANOINUM Hutt. FAB WOODSIA PLUMMERAE LelMlOn was * HIstorIcal In Colorado, belIeved extInct 1n the state