Page authors: David Giblin, Don Knoke
Ladeania lanceolata
wild lemonweed, lance-leaf scurf pea, scurf-pea
WTU specimens
Other herbaria

Distribution: East of the Cascades in Washington, mostly in the central and southcentral areas of the state; Washington south to California, east to the central regions of Canada and the U.S.

Habitat: Sagebrush steppe habitat in dry areas, often where sandy.

Flowers: May-June

Origin: Native

Conservation Status: Not of concern

Description:
General:

Strongly glandular perennial, the stems 3-6 dm. tall, freely branching.

Leaves:

Leaves trifoliate, greenish, leaflets narrowly elliptic-oblanceolate to narrowly obovate, 2-3 cm. long; stipules free of the petioles, the lower ones up to 2 cm. long, the upper reduced.

Flowers:

Inflorescence of fairly dense, 10- to 40-flowered racemes on axillary peduncles that are shorter than the leaves; flowers pea-like, 4-7 mm. long, white to gray-blue, the keel often bluish tipped; calyx bell-shaped, the 5 teeth equal, very short; banner only slightly longer than the keel and oblong wings.

Fruits:

Pod 4-5 mm. long, elliptic-globose, strongly glandular-warty.

Accepted Name:
Ladeania lanceolata (Pursh) A.N. Egan & Reveal

Synonyms & Misapplications:
Laedeania lanceolata (Pursh) A.N. Egan & Reveal, orthographic variant [JPM2]
Psoralea lanceolata Pursh [HC]
Psoralea lanceolata Pursh ssp. scabra (Nutt.) Piper
Psoralea lanceolata Pursh var. purshii (Vail) Piper
Psoralea lanceolata Pursh var. stenophylla (Rydb.) Toft & S.L. Welsh
Psoralea lanceolata Pursh var. stenostachys (Rydb.) S.L. Welsh
Psoralea scabra Nutt.
Psoralea stenostachys Rydb.
Psoralidium lanceolatum (Pursh) Rydb. [IMF]
Psoralidium lanceolatum (Pursh) Rydb. var. stenophyllum (Rydb.) S.L. Welsh
Psoralidium lanceolatum (Pursh) Rydb. var. stenostachys (Rydb.) S.L. Welsh
Psoralidium stenophyllum (Rydb.) Rydb.
Additional Resources:

PNW Herbaria: Specimen records of Ladeania lanceolata in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Ladeania lanceolata checklist entry.

E-Flora BC: Ladeania lanceolata atlas page.

CalPhotos: Ladeania lanceolata photos.

USDA Plants: Ladeania lanceolata information.

17 photographs:
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