Taxon Report

Ladeania lanceolata (Pursh) A.N. Egan & Reveal

lance-leaved scurf-pea

Print Report

Steve Matson

Taxon Summary

Ladeania lanceolata, commonly known as lance-leaved scurf-pea, is a perennial rhizomatous herb in the Fabaceae that is found in California and elsewhere. It occurs within Great Basin scrub, growing at elevations from 1220 to 2500 meters. Ladeania lanceolata is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Ladeania lanceolata (Pursh) A.N. Egan & Reveal
Common Name:	lance-leaved scurf-pea
Family:	Fabaceae
Element Code:	PDFAB5M030
USDA Plants Symbol:
Synonyms/Other Names:	Psoralidium lanceolatum

Ecology and Life History


Lifeform:	perennial rhizomatous herb
Blooming Period: Apr-Aug	Apr-Aug
Elevation:	1220-2500 (4005-8205)
General Habitats:	Great Basin scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.2
Global Rank:	G5
State Rank:	S2S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2B.3 to 2B.2 on 2025-02-03 changed from 2.3 to 2B.3 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	11
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	3
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	8

Location


California Endemic: False
California Counties and Islands: Name (Code)
Lassen (LAS), Mono (MNO)
Quads: Name (Quad Code)
Calneva Lake (4012021), Doyle (4012011)?, Herlong (4012022), Kirkwood Spring (3811828), Sulphur Pond (3811818)

Threat List Data from the CNDDB


Threat List Total:	3
EOs with Threat Listed:	Total EOs	% of EOs
	6	55 %
Other	5	45%
Grazing	2	18%
Development	1	9%

Notes




Threats:

Taxonomy:
See North American Flora 24(1):13 (1919) for revised nomenclature, and Memoirs of the New York Botanical Garden 61:33-36 (1990) for taxonomic treatment.

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 30 October 2025].