Page author: David Giblin
Oxytropis campestris
field locoweed, yellow locoweed
WTU specimens
Other herbaria

Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska south to Oregon, east to Wisconsin and Quebec, south in the Rockies to Colorado.

Habitat: Forest openings and rocky balds from sea-level to the alpine.

Flowers: May-July

Origin: Native

Conservation Status: Not of concern

Description:
General:

Tufted, extremely variable, grayish or greenish perennial, the leaves and peduncles attached near the base, 5-30 cm. tall.

Leaves:

Leaves odd-pinnate, 3-20 cm. long; leaflets 5-41, 5-30 mm. long, narrowly lanceolate, acute; stipules membranous, 5-15 mm. long, attached to the petiole about half their length, hairy on the margins and lower surfaces.

Flowers:

Inflorescence of spike-like racemes on long peduncles, 5- to 40-flowered; flowers 10-20 mm. long, white to yellowish, the keel sometimes purplish; calyx gray- to black-hairy, half the length of the corolla, the 5 teeth linear-oblong, 1-4 mm. long; banner erect, wings longer than the keel, which has a beak 5 mm. long.

Fruits:

Pod 1-2.5 cm. long, almost 2-celled by the intrusion of the upper suture.

Accepted Name:
Oxytropis campestris (L.) DC.

Synonyms & Misapplications:
(none provided)
Infraspecies:
var. columbiana – field locoweed, yellow locoweed    Occurring in the north-central and northeastern regions of Washington; British Columbia south to Washington, and also in western Montana.
var. cusickii – field locoweed, yellow locoweed
var. spicata – field locoweed, yellow locoweed
var. wanapum – field locoweed, yellow locoweed
Additional Resources:

PNW Herbaria: Specimen records of Oxytropis campestris in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Oxytropis campestris checklist entry.

E-Flora BC: Oxytropis campestris atlas page.

CalPhotos: Oxytropis campestris photos.

USDA Plants: Oxytropis campestris information.

77 photographs:
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