Page authors: Don Knoke, David Giblin
Lomatium geyeri
Geyer's desert-parsley, Geyer's lomatium

Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to Washington, east to Idaho.

Habitat: Deeper soil in low to mid-elevations of open, dry areas, and under Ponderosa pine.

Flowers: March-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies, butterflies, beetles, wasps


Glabrous perennial from a thickened taproot, 1.5-3 dm. tall.


Well-developed leaves attached to the stem at or below the ground surface, ternate-pinnately dissected into small, narrow ultimate segments, often over 1 cm. long. Taproot usually elongate with two or more globose-thickened portions.


Inflorescence a compact, compound umbel, the rays very unequal, 1-4 cm. long at maturity; involucre none; involucel bractlets narrow, 2-3 mm. long; calyx teeth obsolete, flowers white with dark purple anthers; pedicels up to 4 mm. long.


Fruit broadly elliptic, glabrous, 7-12 mm. long, the lateral wings +-1/2 as wide as the body.

Accepted Name:
Lomatium geyeri (S. Watson) J.M. Coult. & Rose
Publication: S.Watson) J.M.Coult. & Rose, Contr. U.S. Natl. Herb. 7(1): 209. 1900.

Synonyms & Misapplications:
Orogenia fusiformis var. leibergii
Orogenia leibergii
Peucedanum evittatum Coult. & Rose
Additional Resources:

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

WA Flora Checklist: Lomatium geyeri checklist entry.

OregonFlora: Lomatium geyeri information.

E-Flora BC: Lomatium geyeri atlas page.

CalPhotos: Lomatium geyeri photos.

USDA Plants: Lomatium geyeri information.

61 photographs:
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