Taxon Report

Draba cana Rydb.

canescent draba

Print Report

Taxon Summary

Draba cana, commonly known as canescent draba, is a perennial herb in the Brassicaceae that is found in California and elsewhere. It occurs within Alpine boulder and rock field, Meadows and seeps, and Subalpine coniferous forest, growing at elevations from 3000 to 3505 meters. Draba cana is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Draba cana Rydb.
Common Name:	canescent draba
Family:	Brassicaceae
Element Code:	PDBRA110M0
USDA Plants Symbol:
Synonyms/Other Names:	Draba breweri var. cana

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jul	Jul
Elevation:	3000-3505 (9845-11500)
General Habitats:	Alpine boulder and rock field, Meadows and seeps, Subalpine coniferous forest
Microhabitat:	Carbonate
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G5
State Rank:	S2
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:	8
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	8

Location


California Endemic: False
California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO)
Quads: Name (Quad Code)
Bloody Mtn. (3711858), Convict Lake (3711857), Koip Peak (3711972), Mount Dana (3711982), Mt. Abbot (3711847), Mt. Patterson (3811943)

Threat List Data from the CNDDB


Threat List Total:	2
EOs with Threat Listed:	Total EOs	% of EOs
	2	25 %
Road/trail construction/maint.	2	25%
Mining	1	12%

Notes



State-listed as Sensitive in WA. A synonym of D. cana in The Jepson Manual. See Bulletin of the Torrey Botanical Club for original description, and Harvard Papers in Botany 4:43-48 (1993) for revised nomenclature.
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 24 June 2025].