Taxon Report

Eremothera boothii (Douglas) W.L. Wagner & Hoch ssp. boothii

Booth's evening-primrose

Print Report

Taxon Summary

Eremothera boothii ssp. boothii, commonly known as Booth's evening-primrose, is a annual herb in the Onagraceae that is found in California and elsewhere. It occurs within Joshua tree "woodland", and Pinyon and juniper woodland, growing at elevations from 815 to 2400 meters. Eremothera boothii ssp. boothii is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Eremothera boothii (Douglas) W.L. Wagner & Hoch ssp. boothii
Common Name:	Booth's evening-primrose
Family:	Onagraceae
Element Code:	PDONA03052
USDA Plants Symbol:
Synonyms/Other Names:	Camissonia boothii ssp. boothii

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-Sep	Apr-Sep
Elevation:	815-2400 (2675-7875)
General Habitats:	Joshua tree "woodland", Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G5T4
State Rank:	S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2.3 to 2B.3 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	35
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	3
Poor (D)	1
None (X)	0
Unknown (U)	31

Location


California Endemic: False
California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO), Riverside (RIV), San Bernardino (SBD)
Quads: Name (Quad Code)
Apple Valley South (3411742), Bartlett (3611841), Benton (3711874), Benton Hot Springs (3711875), Blackrock (3611882), Boron Ne (3511725), Cactus Peak (3611717), Chocolate Mtn. (3711748), Coso Junction (3611718), Crooked Creek (3711841), East Deception Canyon (3311683), Grommet (3411416), Hesperia (3411743), Independence (3611872), Lake Arrowhead (3411732), Leach Spring (3511657), Lee Vining (3711981), Marl Mountains (3511526), Mt. Langley (3611852), Myoma (3311673), Negit Island (3811911), Nelson Lake (3511647), Panamint Springs (3611734), Pinto Valley (3511523), Red Pass Lake Ne (3511643), Saddleback Mtn. (3511715), Sheep Creek Spring (3511653), Silverwood Lake (3411733), Tinemaha Reservoir (3711812), Trona West (3511774), Victorville (3411753), Watterson Canyon (3711866), Whitmore Hot Springs (3711867)

Threat List Data from the CNDDB


Threat List Total:	6
EOs with Threat Listed:	Total EOs	% of EOs
	4	11 %
ORV activity	3	8%
Foot traffic/trampling	2	5%
Grazing	1	2%
Other	1	2%
Road/trail construction/maint.	1	2%
Development	1	2%

Notes



Potentially threatened by development. Possibly threatened by mining. vehicles, and foot traffic. See Brittonia 16:285 (1964) for revised nomenclature, Contributions from the U.S. National Herbarium 37(5):365-366 (1969) for taxonomic treatment, and Madroño 44(1):106-108 (1997) for clarification of taxonomy.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 5 February 2025].