Taxon Report

Boechera pygmaea (Rollins) Al-Shehbaz

Tulare County rockcress

Print Report

Taxon Summary

Boechera pygmaea, commonly known as Tulare County rockcress, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Meadows and seeps (edges), and Subalpine coniferous forest, growing at elevations from 2315 to 3400 meters. Boechera pygmaea is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Boechera pygmaea (Rollins) Al-Shehbaz
Common Name:	Tulare County rockcress
Family:	Brassicaceae
Element Code:	PDBRA061N0
USDA Plants Symbol:
Synonyms/Other Names:	Arabis pygmaea

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jun-Jul	Jun-Jul
Elevation:	2315-3400 (7595-11155)
General Habitats:	Meadows and seeps, Subalpine coniferous forest
Microhabitat:	Granitic (sometimes), Gravelly (sometimes), Sandy (sometimes), Volcanic (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:
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)
Inyo (INY), Tulare (TUL)
Quads: Name (Quad Code)
Bartlett (3611841), Chagoopa Falls (3611844), Cirque Peak (3611842), Johnson Peak (3611843), Kern Lake (3611834), Kern Peak (3611833), Mount Whitney (3611853), Mt. Kaweah (3611854), Mt. Thompson (3711825), Quinn Peak (3611835), Sirretta Peak (3511883), Templeton Mtn. (3611832)

Threat List Data from the CNDDB


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

Notes



See Rhodora 43(511):476 (1941) for taxonomic treatment.
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 22 June 2025].