Species Details

Draba asterophora var. asterophora

Tahoe draba

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Classification

Scientific Name: Draba asterophora Pays. var. asterophora
Common Name: Tahoe draba
Family:	Brassicaceae
Element Code:	PDBRA110D1
USDA Plants Symbol:	DRASA2
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G2T2?
State Rank:	S2?
Other Status:	USFS_S
CRPR Changes: changed from 1B.3 to 1B.2 on 2013-03-07
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jul-Aug(Sep)

Elevation:
2500 - 3505 meters
8205 - 11500 feet

General Habitats:

Alpine boulder and rock field
Subalpine coniferous forest

Microhabitat Details:

Microhabitat:

Notes

Notes: Threatened by development and recreational activities. On watch list in NV. Possibly distinct from NV plants; needs further study. A synonym of D. asterophora in TJM 2. See American Journal of Botany 4:263 (1917) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	8
	Total EOs	% of EOs
EOs with Threat Listed:	4	36 %
Recreational use (non-ORV)	4	36%
Road/trail construction/maint.	2	18%
ORV activity	2	18%
Other	2	18%
Pollution	1	9%
Development	1	9%
Erosion/runoff	1	9%
Foot traffic/trampling	1	9%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					11
A	B	C	D	X	U
1	6	0	0	0	4

Occurrence Status:
Historical >20 Years	4
Recent <=20 Years	7

Presence:
Presumed Extant	11
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Nevada (NV)

California Counties and Islands: Name (Code)
Alpine (ALP), El Dorado (ELD), Mono (MNO), Tuolumne (TUO)

Quads: Name (Quad Code)
Caples Lake (3812061), Carson Pass (3811968), Disaster Peak (3811946), Freel Peak (3811978), Koip Peak (3711972), Lost Cannon Peak (3811945), Mount Dana (3711982), South Lake Tahoe (3811988), Woodfords (3811977)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory