*The database used to provide updates to the Online Inventory is under construction. View updates and changes made since May 2019 here.
Tetradymia tetrameres
Common Name: dune horsebrush
Family: Asteraceae
Element Code: PDAST950A0
Full Name: Tetradymia tetrameres (Blake) Strother

2011 Steve Matson
Biology Glossary
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 10
  • Element Occurrence Ranks:
    A B C D X U
    0 1 1 0 0 8
  • Population Status:
    >20 yrs
    <=20 yrs
    6 4
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    10 0 0
Notes Glossary
  • See Proceedings of the Biological Society of Washington 35:176 (1922) for original description, and Brittonia 26:192 (1974) for revised nomenclature.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 2001-01-01
  • Last Update: 2013-06-12
Location Glossary
  • Elevation: 1200 - 2135 meters
  • California Endemic: no
  • Other States: Nevada
  • California Counties and Islands:   name (code)
    Inyo (INY),  Mono (MNO)
  • Quads:   name (DWR code) USGS code
    Deep Springs Lake (412D) 3711831,  Indian Meadows (451B) 3711886,  Glass Mountain (451C) 3711876,  Sulphur Pond (469C) 3811818,  Alameda Well (469D) 3811817,  Negit Island (470D) 3811911
  • 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. This data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant Presumed Extirpated or Unknown 654
Links to Leading Resources of Taxon Information
Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03). Website http://www.rareplants.cnps.org [accessed ].

3711831=Deep Springs Lake (412D) 3711831;3711886=Indian Meadows (451B) 3711886;3711876=Glass Mountain (451C) 3711876;3811818=Sulphur Pond (469C) 3811818;3811817=Alameda Well (469D) 3811817;3811911=Negit Island (470D) 3811911