NEVADA NATIVE PLANT SOCIETY
Rare Plant Committee Meeting
NEVADA RARE PLANT WORKSHOP
Thursday, 4 April 2002, Reno

2002 FINAL AGENDA
http://heritage.nv.gov/nrpw/agenda02.htm

The chair reserves the right to prioritize agenda items based on participants' schedules, time received, and/or conservation priorities, and to curtail lengthy or marginally relevant items, to ensure that the most critical items are addressed.

• Las Vegas on Tuesday, 1 April 2003? UNLV location still OK?
• Lunch Break?

• Eric Peterson, Nevada Natural Heritage Program: update on lichen and fungus tracking and conservation in Nevada.
• U.S. Fish and Wildlife Service: program updates.
• Jim Shevock, National Park Service (afternoon arrival): new moss floristics project in Nevada.
• Other Agencies?
• Questions and Answers

• Atriplex longitrichoma - Pahrump silverscale. Left open at the 2001 Workshop, pending field searches. Recently described annual, segregated from Atriplex argentea complex based on presence of long deciduous hairs and different fruit characters, closest to Atriplex argentea var. hillmanii. Restricted to Pahrump and Stewart valleys, most abundant in abandoned disturbances. Recently combined as Atriplex argentea var. longitrichoma by Welsh (Rhodora 102: 421, 2000). Any new information? Is the taxonomy reasonable? Threatened by habitat conversion in Pahrump Valley? Add to Watch or Threatened List?
• Draba incrassata - Left open by 2000-2001 Workshops until Steve Rae's report of its presence on the Nevada side of the Sweetwater Mountains can be verified. Any new information?
• Eriogonum corymbosum var. glutinosum - recommended for the first time for addition to the Nevada list of fully protected flora at the 2001 Workshop, contingent on the results of research into distinctness and overall range of the southern Nevada form. Is there any new information? If so, do we concur with the recommendation for the second time? Jerry Tiehm (April 2000) reports that its range includes Garfield, Wayne, Kane, Washington, and Iron counties in Utah, and Coconino, Navajo, and Apache counties in Arizona. See also Jerry's comments from 2001.
• Lathyrus grimesii and Trifolium leibergii - any new information on status of population(s) infested by leafy spurge or other noxious weeds? See comments by Steve Anderson from 2001.
• Lesquerella goodrichii - left open at the 2000-2001 Workshops because of insufficient information for a decision. Of concern in Utah, which considers it a good taxon and ranks it G2G3 S2, known also from eastern Nevada. How common or rare, threatened or secure, is it? Add to NNPS Watch List? Noel Holmgren and Stan Welsh have synonymized it with L. occidentalis var. cinerascens (see comments from Noel).
• Lotus argyraeus var. multicaulis - scrub lotus. Recommended for NNNPS Watch list by the 2001 Workshop, pending verification of the Nevada report from west of McCullough Springs in the McCullough Mountains of Clark County. This has now been verified (see comments from Wes Niles). Otherwise endemic to a small area of the New York Mountains of southeastern California, where known from about 4 sites. Global rank T1, ranked S1.3 in California, and on CNPS list 1B. Nevada rank also S1. Not surveyed in Nevada, habitat sandy washes, ledges or clay slopes in canyons. Continue on NNPS watch list, or is other status more appropriate?
• Mimulus ovatus - Steamboat monkeyflower. Recommended by the 2001 Workshop for NNPS Threatened status and addition to the Nevada list of fully protected flora. Have field and/or herbarium surveys shed any new light on the taxonomic status and possible hybrid origin of this taxon, or it's possible geographic range beyond the Steamboat Springs area? See comments from Noel Holmgren. Do we want to recommend Nevada state listing for a second time?
• Mosses: at the 2001 Workshop moss collections from a 2000 Spring Mountain mossing foray were still unprocessed, but had indicated some new state records and/or undescribed taxa. Any new information on these collections?
• Penstemon bicolor - after recent field and laboratory studies, are there any new data or opinions regarding the distinction between var. bicolor and var. roseus?
• Petalonyx thurberi ssp. gilmanii - Death Valley sandpaper plant. Left open at the 2001 Workshop, pending verification of a Nevada report from southern Nye County, Nevada. Any new information? Add to NNPS watch list?
• Pinus washoensis - David Charlet (2000, 2001) is planning to further investigate the relationship of the Nevada populations to the northern race of Pinus ponderosa var. ponderosa. He still believes they may be distinct at some level and worthy of continued conservation status (see the comments by David Charlet). Any status changes or recommendations?
• Senecio pattersonensis - 2000 Workshop recommended adding to NNPS Watch list pending verification of a specimen from Nevada. At the 2001 Workshop, Frank Smith reported that he and Jan Nachlinger searched for and didn't find the Wassuk Range population, and will be trying to check the specimen. Any new information on the Wassuk Range or Sweetwater Mountains reports?

• Astragalus lentiginosus var. stramineus (Straw milkvetch) - fewer than 20 known occurrences in Nevada and possibly globally (T2T3), perhaps fewer than 6 in Nevada (S1S2). Locally plentiful over a very restricted range in the lower Virgin River valley of Mohave Co., Arizona, and adjacent Clark Co., Nevada. Possibly threatened by development in the Mesquite area. Add to NNPS Watch List?
• Astragalus mohavensis var. hemigyrus - recent surveys have greatly expanded the known range, now in 3 counties with at least 30 occurrences separated by 1 km or more, all on federal lands. Does this taxon remain threatened with extinction, or should it be removed from the State of Nevada list of fully protected (endangered) species?
• Astragalus preussii var. laxiflorus (Lancaster milkvetch) - fewer than 20 known occurrences in Nevada and possibly globally (T2T3), perhaps fewer than 6 in Nevada (S1S2). Locally plentiful over a restricted range in the lower Muddy River and Virgin River valleys of Mohave Co., Arizona, and adjacent Clark Co., Nevada, with a small disjunct location near Lancaster, California. Welsh et al. (1993) report it to be common along the road south of Overton toward Lake Mead. On CNPS List 1B, R-E-D- 3-3-2. Possibly threatened by development in the Mesquite area. Add to NNPS Watch List?
• Botrychium lineare (narrowleaf moonwort) - described by Wagner in 1994, has been reported from a single specimen collected by Cheryl Beyer in the Spring Mountains, and tentatively identified by Donald Farrar of Iowa State University. Jim Morefield is unsure how to distinguish this specimen from a depauperate plant of Botrychium ascendens. Botrychium lineare has been petitioned for listing under the Endangered Species Act, and found warranted but precluded. Can the ID of Botrychium lineare from the Spring Mountains, and its distinction from B. ascendens be firmed up? If so, is true Botrychium ascendens present in the Spring Mountains, or are all past reports based on specimens of B. lineare? Funding is being sought to resolve the ID of all Spring Mountain Botrychium (see comments from Cheryl Beyer). Are any status recommendations yet warranted for Botrychium lineare in Nevada?
• Eriogonum entities - James Reveal has several undescribed species and varieties he is working on for Nevada. Details to follow ...
• Lomatium graveolens var. clarkii - recently synonymized with var. alpinum, a more widespread taxon, in Intermountain Flora vol. 3A. Does this taxon still merit concern from Clark County or other agencies?
• Perityle congesta (Grand Canyon rockdaisy) - fewer than 20 known locations globally (G1G2), and one known site in Nevada (S1). Restricted to rock crevices on the rims and walls of the lower Grand Canyon in Mohave and Coconino cos., Arizona, and east of Spirit Mountain in the Newberry Mountains, Clark Co., Nevada. Add to NNPS Watch List?
• Perityle tenella (Dixie rockdaisy) - fewer than 20 known occurrences in Nevada and possibly globally (G2G3), perhaps fewer than 6 in Nevada (S1S2). Known from rock crevices in Washington Co., Utah, Clark Co., Nevada, and adjacent Arizona. Add to NNPS Watch List?
• Phacelia geraniifolia (Jaeger phacelia, =P. perityloides var. jaegeri) - known only from a few locations in the Sheep Range of Clark County, Nevada, and from Clark Mountain (one quadrangle), San Bernardino Co., California, generally in sheltered carbonate rock crevices. Ranked G2, S1S2 in Nevada. On CNPS List 1B, R-E-D 3-1-2. Add to NNPS Watch List?
• Phacelia laxiflora (nodding scorpionflower, =P. perityloides var. laxiflora) - known only from sheltered, sometimes moist carbonate rock crevices in the Virgin River gorge, Washington Co., Utah, Emory Falls in the Grand Canyon, Mohave Co., Arizona, and the Virgin Mountains, Clark Co., Nevada. Ranked G2G3, S1? in Nevada. Add to NNPS Watch List?
• Phacelia pulchella var. gooddingii (Goodding phacelia) - an annual locally common on gypsum clay soils in the Newberry and Muddy Mountains and Moapa Valley in Clark and southern Lincoln cos., Nevada, Lake Mead NRA in adjacent Mohave Co., Arizona, and one occurrence in Inyo Co., California. Ranked T2T3, S2S3 in Nevada. On CNPS List 2, R-E-D 3-1-1. How similar are habitat and threats to those of Arctomecon californica, Eriogonum corymbosum var. glutinosum, etc.? Add to NNPS Watch List?
• Sisyrinchium funereum (Death Valley blue-eyed grass) - Restricted to 4 map quadrangles in the Death Valley area, and reported from adjacent Clark and Nye cos., Nevada. Estimated ranks G2G3Q, S1S2 in Nevada. Intermediate between S. demissum and S. halophilum and questionably distinct. Habitat highly vulnerable. On CNPS List 1B, R-E-D 3-1-2. Attempt to identify Nevada specimens? Add to NNPS Watch List?
• Trifolium eriocephalum var. villiferum (woolly clover) - known from perhaps fewer than 20 sites globally (T2?), fewer than 6 in Utah (S1), and possibly fewer than 6 sites in Nevada (S1S2). Limited to wet habitats in northwestern Utah and adjacent White Pine and Elko cos., Nevada, with the some of the Elko Co. sites intermediate to var. cusickii. Habitat highly vulnerable. Add to NNPS Watch List?

• Viola purpurea var. charlestonensis (Charleston violet) - treated as a full species, Viola charlestonensis, by Arizona workers and in the national checklist, and as a variety in Utah. Any opinions and data on which is more appropriate?
• Taxa recommended for addition to the new NNPS "M" list (Marginal and/or disjunct occurrence in Nevada, more widespread elsewhere).

• Oxytropis besseyi var. argophylla (red loco) - common in sw. Montana and mountainous central Idaho, disjunct at 2150-2300 m on quartzite of the Granite Range and White Elephant Butte in extreme ne. Elko Co., Nevada (Intermountain Flora vol. 3B).

(last updated 2 April 2002) 

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