Taxon Report

Boechera pendulina (Greene) W.A. Weber

rabbit-ear rockcress

Print Report

Taxon Summary

Boechera pendulina, commonly known as rabbit-ear rockcress, is a perennial herb in the Brassicaceae that is found in California and elsewhere. It occurs within Great Basin scrub, and Pinyon and juniper woodland, growing at elevations from 3050 to 3200 meters. Boechera pendulina is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Boechera pendulina (Greene) W.A. Weber
Common Name:	rabbit-ear rockcress
Family:	Brassicaceae
Element Code:	PDBRA40520
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Apr-Jun	Apr-Jun
Elevation:	3050-3200 (10005-10500)
General Habitats:	Great Basin scrub, Pinyon and juniper woodland
Microhabitat:	Carbonate (sometimes), Gravelly (sometimes), Rocky (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.1
Global Rank:	G5?
State Rank:	S2
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2B.3 to 2B.1 on 2017-08-29 changed from 2.3 to 2B.3 on 2004-05-18

Occurrence Data from the CNDDB


Total Occurrences:	9
Element Occurrence Ranks:
Excellent (A)	5
Good (B)	2
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	2

Location


California Endemic: False
California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO)
Quads: Name (Quad Code)
Blanco Mtn. (3711842), Mt. Barcroft (3711852), Westgard Pass (3711832)

Threat List Data from the CNDDB


Threat List Total:	1
EOs with Threat Listed:	Total EOs	% of EOs
	2	22 %
Foot traffic/trampling	2	22%

Notes



See Leaflets of Botanical Observation and Criticism 2:81 (1910) for original description, and Phytologia 51:370 (1982) for revised nomenclature.
Threats:

Taxonomy:

Selected References

Proposed Addition to CRPR 2, G5T? / S1.1 (2004)

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 29 October 2025].