Taxon Report

Lasthenia chrysantha (A. Gray) Greene

alkali-sink goldfields

Print Report


© 2009 California State University, Stanislaus

Taxon Summary

Lasthenia chrysantha, commonly known as alkali-sink goldfields, is a annual herb in the Asteraceae that is found only in California. It occurs within Vernal pools, growing at elevations from 0 to 200 meters. Lasthenia chrysantha is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

  Classification
Scientific Name:
 Lasthenia chrysantha (A. Gray) Greene
Common Name:
 alkali-sink goldfields
Family: Asteraceae
Element Code: PDAST5L030
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History
Lifeform: annual herb
Blooming Period: Feb-Apr Feb-Apr
Elevation: 0-200 (0-655)
General Habitats: Vernal pools
Microhabitat: Alkaline
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 1B.1
Global Rank: G2
State Rank:
 S2
State List: None
Fed List: None
Other Status:
CRPR Changes:
  • added to 1B.1 on 2019-09-30

Occurrence Data from the CNDDB
Total Occurrences: 55
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 15
   Unknown (U) 40

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Fresno (FRE), Kern (KRN), Kings (KNG), Madera (MAD), Merced (MER), Sacramento (SAC), Solano (SOL), Stanislaus (STA), Tulare (TUL)
Quads: Name (Quad Code)
Allensworth (3511974), Alpaugh (3511984), Arena (3712036), Cairns Corner (3611922), Cerro Colorado (3612068), Chounet Ranch (3612066), Chowchilla (3712013), Conejo (3611956), Crows Landing (3712141), Delano West (3511973), Dozier (3812137), Dudley Ridge (3511987), El Nido (3712024), El Rico Ranch (3611916), Exeter (3611932), Florin (3812144), Goshen (3611934), Gravelly Ford (3612072), Guijarral Hills (3612022), Gustine (3712038), Hacienda Ranch NW (3511986), Hammonds Ranch (3612076), Helm (3612051), Jamesan (3612062), Kerman (3612061), Laguna Seca Ranch (3612077), Laton (3611946), Lone Tree Well (3511976), Lost Hills (3511956), Lost Hills NE (3511965), Lost Hills NW (3511966), Mercey Hot Springs (3612067), Monson (3611943), Ortigalita Peak (3612078), Pixley (3511983), Remnoy (3611935), Ripon (3712162), San Luis Ranch (3712027), Sausalito School (3511982), Semitropic (3511955), Stevinson (3712037), Stratford Se (3611917), Taylor Weir (3611914), Tranquillity (3612063), Traver (3611944), Tulare (3611923), Tupman (3511933), Westley (3712152)

Threat List Data from the CNDDB

Threat List Total: 4
EOs with Threat Listed: Total EOs % of EOs
25 45 %
Agriculture 23 41%
Development 5 9%
Grazing 1 1%
Non-native plant impacts 1 1%

Notes

See Synoptical Flora of North America 1(2):445 (1884) for original description, and Manual of the Botany of the Region of San Francisco Bay, p. 204 (1894) by E.L. Greene for revised nomenclature.
Threats:

Threatened by habitat loss, agriculture, urbanization, and development.
Taxonomy:

Selected References

CRPR List Addition on 2019-09-30
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].