Page author: David Giblin
Lomatium thompsonii
Thompson's biscuit-root, Thompson's desert-parsley

Distribution: Occurring east of the Cascades crest in Washington, where endemic to Chelan and Kittitas counties.

Habitat: Open, rocky slopes and ponderosa pine forest openings, from low to middle elevations.

Flowers: May-June

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies, butterflies, beetles, wasps


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Accepted Name:
Lomatium thompsonii (Mathias) Cronquist
Publication: Vasc. Pl. Pacif. N. W. [C.L. Hitchcock & al.] 3: 563. 1961.

Synonyms & Misapplications:
Lomatium suksdorfii (S. Watson) J.M. Coult. & Rose var. thompsonii Mathias
Additional Resources:

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

WA Flora Checklist: Lomatium thompsonii checklist entry.

OregonFlora: Lomatium thompsonii information.

E-Flora BC: Lomatium thompsonii atlas page.

CalPhotos: Lomatium thompsonii photos.

USDA Plants: Lomatium thompsonii information.

16 photographs:
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