Page authors: Don Knoke, David Giblin
Lomatium columbianum
Columbia Gorge desert-parsley
WTU specimens
Other herbaria

Distribution: At the east end of the Columbia River Gorge in Washington; Washington south to northern Oregon.

Habitat: Deeper soil in shrub-steppe.

Flowers: March-April

Origin: Native

Conservation Status: Not of concern

Description:
General:

Stout, aromatic, glabrous and glaucous perennial from a very thick, woody taproot and crown, 3-6 dm. tall, with several stems from the base.

Leaves:

Leaves light green, mostly basal, ternate-pinnately dissected into numerous linear ultimate segments up to 2 cm. long and 1 mm. wide; bladeless basal sheathes well developed and conspicuous.

Flowers:

Inflorescence a compound umbel, the rays 7-14, nearly equal, 4-20 cm. long; involucre wanting; involucel of well-developed, narrow bractlets; pedicels 10-30 mm. long at maturity; calyx teeth obsolete, flowers pinkish purple.

Fruits:

Fruit elliptic to oblong-ovate, 16-28 mm. long and 8-15 mm. wide, the lateral wings thickened, up to 1/3 as wide as the body.

Accepted Name:
Lomatium columbianum Mathias & Constance

Synonyms & Misapplications:
Leptotaenia purpurea
Additional Resources:

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

WA Flora Checklist: Lomatium columbianum checklist entry.

E-Flora BC: Lomatium columbianum atlas page.

CalPhotos: Lomatium columbianum photos.

USDA Plants: Lomatium columbianum information.

29 photographs:
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