Taxon Report

Oenothera cespitosa Nutt. ssp. crinita (Rydb.) Munz

caespitose evening-primrose

Print Report

Taxon Summary

Oenothera cespitosa ssp. crinita, commonly known as caespitose evening-primrose, is a perennial rhizomatous herb in the Onagraceae that is found in California and elsewhere. It occurs within Pinyon and juniper woodland, Sonoran desert scrub, and Subalpine coniferous forest, growing at elevations from 1150 to 3370 meters. Oenothera cespitosa ssp. crinita is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification


Scientific Name:	Oenothera cespitosa Nutt. ssp. crinita (Rydb.) Munz
Common Name:	caespitose evening-primrose
Family:	Onagraceae
Element Code:	PDONA0C063
USDA Plants Symbol:
Synonyms/Other Names:	Oenothera caespitosa Nutt. ssp. crinita (Rydb.) Munz

Ecology and Life History


Lifeform:	perennial rhizomatous herb
Blooming Period: (Apr)Jun-Sep	(Apr)Jun-Sep
Elevation:	1150-3370 (3775-11055)
General Habitats:	Pinyon and juniper woodland, Sonoran desert scrub, Subalpine coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G5T4
State Rank:	S4?
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


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

Location


California Endemic: False
California Counties and Islands: Name (Code)
Inyo (INY), Lassen (LAS), San Bernardino (SBD)
Quads: Name (Quad Code)
Buckhorn Canyon (4012071), Clark Mtn. (3511555), Darwin (3611735), Emigrant Pass (3611732), Grapevine Peak (3611782), Hart Peak (3511531), Last Chance Mtn. (3711736), Lower Warm Springs (3611777), Mescal Range (3511545), Panamint (3611711), Santa Rosa Flat (3611746), Solomons Knob (3511547), Talc City Hills (3611736), Telescope Peak (3611721), West of Teakettle Junction (3611776)

Threat List Data from the CNDDB


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

Notes



Threatened by cattle grazing. Possibly threatened by foot traffic.
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 12 March 2025].