Taxon Report

Peteria thompsoniae Wats.

spine-noded milk vetch

Print Report

Classification


Scientific Name:	Peteria thompsoniae Wats.
Common Name:	spine-noded milk vetch
Family:	Fabaceae
Element Code:	PDFAB32020
USDA Plants Symbol:	PETH5
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: May-Jun	May-Jun
Elevation:	800-825 (2625-2705)
General Habitats:	Mojavean desert scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.1
Global Rank:	G4
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2.1 to 2B.1 on 2013-06-12 changed from 2.3 to 2.1 on 2012-02-14

Occurrence Data from the CNDDB


Total Occurrences:	2
Element Occurrence Ranks:
Excellent (A)	1
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	1

Location


California Endemic: False
California Counties and Islands: Name (Code)
Inyo (INY)
Quads: Name (Quad Code)
Calvada Springs (3511588), North of Tecopa Pass (3511681)

Threat List Data from the CNDDB


Threat List Total:	1
EOs with Threat Listed:	Total EOs	% of EOs
	1	50 %
ORV activity	1	50%

Notes



Threatened by vehicles. Possibly threatened by solar energy development. Endangered in ID. See Madroño 34(4):381 (1987) for the historical CA record.
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 7 January 2025].