Taxon Report

Draba sierrae C.W. Sharsm.

Sierra draba

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Taxon Summary

Draba sierrae, commonly known as Sierra draba, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Alpine boulder and rock field (carbonate, and granitic), growing at elevations from 3500 to 4265 meters. Draba sierrae is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.


  Classification

Scientific Name:
Draba sierrae C.W. Sharsm.
Common Name:
Sierra draba
Family: Brassicaceae
Element Code: PDBRA112A0
USDA Plants Symbol: DRSI
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: Jun-Aug Jun-Aug
Elevation: 3500-4265 (11485-13995)
General Habitats: Alpine boulder and rock field
Microhabitat:
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 13
Element Occurrence Ranks:
   Excellent (A) 3
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 10
California Endemic:  True
California Counties and Islands: Name (Code)
Fresno (FRE), Inyo (INY)
Quads: Name (Quad Code)
Mount Tom (3711836), Mt. Abbot (3711847), Mt. Hilgard (3711837), Mt. Morgan (3711846), Mt. Thompson (3711825), North Palisade (3711815)

Notes

Specimens from the White Mountains area need verification. See MadroƱo 5:149 (1940) for original description.
Threats:
Taxonomy:
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].