Taxon Report

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

Booth's hairy evening-primrose

Print Report

Taxon Summary

Eremothera boothii ssp. intermedia, commonly known as Booth's hairy evening-primrose, is a annual herb in the Onagraceae that is found in California and elsewhere. It occurs within Great Basin scrub (sandy), and Pinyon and juniper woodland, growing at elevations from 1500 to 2150 meters. Eremothera boothii ssp. intermedia 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. intermedia (Munz) W.L. Wagner & Hoch
Common Name:	Booth's hairy evening-primrose
Family:	Onagraceae
Element Code:	PDONA03056
USDA Plants Symbol:
Synonyms/Other Names:	Camissonia boothii ssp. intermedia

Ecology and Life History


Lifeform:	annual herb
Blooming Period: (May)Jun	(May)Jun
Elevation:	1500-2150 (4920-7055)
General Habitats:	Great Basin scrub, Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G5T3T4
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:	14
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	14

Location


California Endemic: False
California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO), San Bernardino (SBD)
Quads: Name (Quad Code)
Blackrock (3611882), Chloride City (3611668), Chocolate Mtn. (3711748), Fish Springs (3711813), Horse Thief Springs (3511578), Independence (3611872), Kearsarge Peak (3611873), Last Chance Mtn. (3711736), Last Chance Range SW (3711716), Laws (3711843), Manly Peak (3511781), Telescope Peak (3611721), Tinemaha Reservoir (3711812), Wahguyhe Peak (3611781), Watterson Canyon (3711866), Westgard Pass (3711832)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	%

Notes



Possibly threatened by vehicles and road maintenance. See North American Flora II 5:152 (1965) for original description, Contributions from the U.S. National Herbarium 37:364 (1969) for revised nomenclature, 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 10 May 2025].