Taxon Report

Clarkia virgata Greene

Sierra clarkia

Print Report

Taxon Summary

Clarkia virgata, commonly known as Sierra clarkia, is a annual herb in the Onagraceae that is found only in California. It occurs within Cismontane woodland, and Lower montane coniferous forest, growing at elevations from 400 to 1680 meters. Clarkia virgata is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Clarkia virgata Greene
Common Name:	Sierra clarkia
Family:	Onagraceae
Element Code:	PDONA05160
USDA Plants Symbol:	CLVI2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: May-Aug	May-Aug
Elevation:	400-1680 (1310-5510)
General Habitats:	Cismontane woodland, Lower montane coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
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: True
California Counties and Islands: Name (Code)
Amador (AMA), Calaveras (CAL), El Dorado (ELD), Mariposa (MPA), Placer (PLA), Plumas (PLU), Tuolumne (TUO), Yuba (YUB)
Quads: Name (Quad Code)
Ackerson Mtn. (3711977), Amador City (3812047), Ascension Mtn. (3711978), Aukum (3812056), Boards Crossing (3812032), Buckingham Mtn. (3711957), Caldor (3812054), Camino (3812066), Camptonville (3912141), Cherry Lake South (3711988), Crandall Peak (3812022), Devil Peak (3812085), Devils Nose (3812044), Dorrington (3812033), Duckwall Mtn. (3712081), Echo Lake (3812071), Foresthill (3912017), Garnet Hill (3812043), Georgetown (3812087), Groveland (3712072), Kyburz (3812073), Leek Spring Hill (3812063), Omo Ranch (3812055), Peddler Hill (3812053), Pine Grove (3812046), Pollock Pines (3812075), Raynor Creek (3712021), Riverton (3812074), Slate Mtn. (3812076), Sly Park (3812065), Spring Garden (3912087), Stanislaus (3812023), Strawberry (3812021), Stump Spring, Calif. (3812064), Tuolumne (3712082), Twain Harte (3812012), Wawona (3711956), West Point (3812045)

Threat List Data from the CNDDB


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

Notes




Threats:
Possibly threatened by road maintenance and non-native plants.
Taxonomy:
May form sterile hybrids with C. australis.

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].