Taxon Report

Eriogonum evanidum Reveal

vanishing wild buckwheat

Print Report



  Classification

Scientific Name:
Eriogonum evanidum Reveal
Common Name:
vanishing wild buckwheat
Family: Polygonaceae
Element Code: PDPGN08780
USDA Plants Symbol:
Synonyms/Other Names:
  • Eriogonum foliosum Wats.

Ecology and Life History

Lifeform: annual herb
Blooming Period: Jul-Oct Jul-Oct
Elevation: 1100-2225 (3610-7300)
General Habitats: Chaparral, Cismontane woodland, Lower montane coniferous forest, Pinyon and juniper woodland
Microhabitat: Gravelly (sometimes), Sandy (sometimes)
Microhabitat Details:

Conservation Status

CA Rare Plant Rank: 1B.1
Global Rank: G1
State Rank:
S1
State List: None
Fed List: None
Other Status: SB_CalBG/RSABG; USFS_S
CRPR Changes:
  • changed from 1B.2 to 1B.1 on 2007-07-23

Occurrence Data from the CNDDB

Total Occurrences: 9
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 3
   Fair (C) 2
   Poor (D) 0
   None (X) 0
   Unknown (U) 4
California Endemic:  False
California Counties and Islands: Name (Code)
Riverside (RIV), San Bernardino (SBD), San Diego (SDG)
Quads: Name (Quad Code)
Alpine (3211677), Anza (3311656), Big Bear City (3411637), Butterfly Peak (3311655), Descanso (3211675), Fawnskin (3411638), Hot Springs Mtn. (3311635), Idyllwild (3311666), Moonridge (3411627), Viejas Mountain (3211676), Warner Springs (3311636)

Threat List Data from the CNDDB

Threat List Total: 7
EOs with Threat Listed: Total EOs % of EOs
5 56 %
ORV activity 3 33%
Recreational use (non-ORV) 3 33%
Foot traffic/trampling 2 22%
Grazing 2 22%
Logging 1 11%
Road/trail construction/maint. 1 11%
Development 1 11%

Notes

Threatened by development, foot traffic, grazing, recreational activities, and vehicles. Possibly threatened by alteration of fire regimes and non-native plants. Easily confused with E. davidsonii; possibly overlooked. See E. foliosum in The Jepson Manual (1993). Most occurrences not seen recently; need field surveys. See Phytologia 86(3): 133 (2004) for original description, and MadroƱo 59(3):150-155 (2012) for information on rediscovery.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].