Page authors: Don Knoke, Ben Legler
Lomatium linearifolia
Great Basin Indian-potato, linear-leaved orogenia
WTU specimens
Other herbaria

Distribution: Eastern Washington and Oregon, southeast to Colorado

Habitat: Open slopes and ridges, low to mid-elevations

Flowers: March - May

Origin: Native

Conservation Status: Not of concern


Delicate, scapose perennial from a tuberous-thickened root, the leaves nearly prostrate and the scape only a few cm. high.


Leaves basal, usually 2 or 3, biternate, the ultimate segments 1-4.5 cm. long and 0.5-4 mm. wide. The globose root up 1.5 cm. thick, and seated 2-7 cm. below the surface of the ground.


Inflorescence a compact, compound umbel, longer than wide, the few, unequal, spreading rays 1-2 cm. long; involucre and involucel wanting; calyx teeth obsolete; petals white, the anthers dark purple; pedicels up to 2 mm. long.


Fruit glabrous, oblong-elliptic, 3-4 mm. long, the lateral wings corky and bent down, the dorsal wings evident; stylopodium wanting.

Accepted Name:
Lomatium linearifolia (S.Watson) J.F. Smith & Mansfield

Synonyms & Misapplications:
Orogenia linearifolia S. Watson [HC, IMF3]
Orogenia linearifolia S. Watson var. lata Payson
Additional Resources:

PNW Herbaria: Specimen records of Lomatium linearifolia in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Lomatium linearifolia checklist entry.

E-Flora BC: Lomatium linearifolia atlas page.

CalPhotos: Lomatium linearifolia photos.

USDA Plants: Lomatium linearifolia information.

13 photographs:
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