Page authors: Don Knoke, David Giblin
Lomatium laevigatum
slickrock desert-parsley, smooth lomatium
WTU specimens
Other herbaria

Distribution: Along the Columbia River in Klickitat County, Washington, and adjacent Oregon.

Habitat: Crevices is basalt cliffs.

Flowers: April

Origin: Native

Conservation Status: Threatened in Washington (WANHP)

Description:
General:

Glabrous perennial from a stout taproot and branching, woody base, 2.5-4 dm. tall.

Leaves:

Leaves basal, ternate-pinnately dissected into linear segments 1-2 mm. wide and 1-3 cm. long.

Flowers:

Inflorescence a compound umbel, the rays unequal, 3-5 cm. long; involucre none; involucel wanting or inconspicuous; pedicels 4-10 mm. long; calyx teeth obsolete; flowers yellow.

Fruits:

Fruit glabrous, elliptic, 7-12 mm. long, the wings to wholly as wide as the body.

Accepted Name:
Lomatium laevigatum (Nutt.) J.M. Coult. & Rose

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Lomatium laevigatum checklist entry.

E-Flora BC: Lomatium laevigatum atlas page.

CalPhotos: Lomatium laevigatum photos.

USDA Plants: Lomatium laevigatum information.

22 photographs:
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