Taxon Details

Draba asterophora var. macrocarpa

Cup Lake draba

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Taxon Summary:

Draba asterophora var. macrocarpa, commonly known as Cup Lake draba, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Subalpine coniferous forest, growing at elevations from 2500 to 2815 meters. Draba asterophora var. macrocarpa is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Draba asterophora Pays. var. macrocarpa C.L. Hitchc.
Common Name: Cup Lake draba
Family:	Brassicaceae
Element Code:	PDBRA110D2
USDA Plants Symbol:	DRASM
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	None
Global Rank:	G2T1
State Rank:	S1
Other Status:	USFS_S
CRPR Changes: changed from 1B.3 to 1B.1 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 - 2815 meters
8205 - 9235 feet

General Habitats:

Subalpine coniferous forest (rocky)

Microhabitat Details:

Microhabitat:

Notes

Notes: Known from only near Cup Lake and Saucer Lake below Ralston Pk. Potentially threatened by foot traffic. A synonym of D. asterophora in TJM 2. See Proceedings of the Biological Society of Washington 11:64 (1941) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	4
	Total EOs	% of EOs
EOs with Threat Listed:	2	50 %
Foot traffic/trampling	2	50%
Recreational use (non-ORV)	1	25%
Road/trail construction/maint.	1	25%
Erosion/runoff	1	25%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					4
A	B	C	D	X	U
1	2	0	0	0	1

Occurrence Status:
Historical >20 Years	2
Recent <=20 Years	2

Presence:
Presumed Extant	4
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
El Dorado (ELD)

Quads: Name (Quad Code)
Echo Lake (3812071)

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