Swallenia alexandrae
Common Name: Eureka Valley dune grass
Family: Poaceae
Synonyms:
Element Code: PMPOA5Y010
Full Name: Swallenia alexandrae (Swall.) Soderstrom & Decker
USDA PLANTS Symbol: SWAL

© 2005 Steve Matson
Biology Glossary
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 5
  • Element Occurrence Ranks:
    A B C D X U
    5 0 0 0 0 0
  • Population Status:
    Historic
    >20 yrs
    Recent
    <=20 yrs
    0 5
  • Presence:
    Present Extant Possibly Extirpated Extirpated
    5 0 0
Notes Glossary
  • Known only from dunes in Eureka Valley, within Death Valley NP. Habitat previously degraded by vehicle traffic; populations recovering well, but still threatened by vehicle trespass and recreation. See Journal of the Washington Academy of Sciences 40(1):19-21 (1950) for original description, Madroño 17(3):88 (1963) for revised nomenclature, and Biological Conservation 46:217-242 (1988) for population biology.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1974-01-01
  • Last Update: 2010-03-15
Location Glossary
  • Elevation: 850 - 1280 meters
  • California Endemic: yes
  • States: California
  • California Counties and Islands:   name (code)
    Inyo (INY)
  • Quads:   name (DWR code) USGS code
    Hanging Rock Canyon (390B) 37117B6,  Last Chance Range SW (390C) 37117A6,  East of Joshua Flats (391A) 37117B7,  East of Waucoba Spring (391D) 37117A7
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable.
Presumed Extant Presumed Extirpated or Unknown 1510
Links to Leading Resources of Taxon Information
Suggested Citation
CNPS, Rare Plant Program. . Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Website http://www.rareplants.cnps.org [accessed ].
-117.625,37.125

CA
37117B6=Hanging Rock Canyon (390B) 37117B6;37117A6=Last Chance Range SW (390C) 37117A6;37117B7=East of Joshua Flats (391A) 37117B7;37117A7=East of Waucoba Spring (391D) 37117A7