Taxon Report

Eremothera minor (A. Nelson) W.L. Wagner & Hoch

Nelson's evening-primrose

Print Report

Taxon Summary

Eremothera minor, commonly known as Nelson's evening-primrose, is a annual herb in the Onagraceae that is found in California and elsewhere. It occurs within Chenopod scrub, and Great Basin scrub (sandy), growing at elevations from 1200 to 1380 meters. Eremothera minor is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Eremothera minor (A. Nelson) W.L. Wagner & Hoch
Common Name:	Nelson's evening-primrose
Family:	Onagraceae
Element Code:	PDONA03110
USDA Plants Symbol:
Synonyms/Other Names:	Camissonia minor

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-Jul	Apr-Jul
Elevation:	1200-1380 (3935-4530)
General Habitats:	Chenopod scrub, Great Basin scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G4
State Rank:	S1S2
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:	20
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	2
Poor (D)	0
None (X)	0
Unknown (U)	18

Location


California Endemic: False
California Counties and Islands: Name (Code)
Lassen (LAS), Modoc (MOD)
Quads: Name (Quad Code)
Fortynine Mtn. (4111958), Calneva Lake (4012021), Leonards Hot Springs (4112051), Little Mud Flat (4012042), Shaffer Mtn. (4012043), Spencer Creek (4012031), Wendel (4012032), Wendel Hot Springs (4012033)

Threat List Data from the CNDDB


Threat List Total:	2
EOs with Threat Listed:	Total EOs	% of EOs
	14	70 %
Other	13	65%
Non-native plant impacts	1	5%

Notes



See Bulletin of the Torrey Botanical Club 26:130 (1899) for original description, Brittonia 16:285 (1964) for revised nomenclature, and Contributions from the U.S. National Herbarium 37(5):371-373 (1969) for taxonomic treatment.
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 25 October 2025].