E-Flora BC: Electronic Atlas of the Flora of British Columbia

Lomatium geyeri (S. Watson) J.M. Coult. & Rose

Introduction to Vascular Plants

© Gordon Neish  Email the photographer   (Photo ID #16130)

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Distribution of Lomatium geyeri
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Species Information

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Stout perennial herb from a taproot, subglobose-thickened to more elongate and necklace-like; stems solitary, glabrous, 15-30 (40) cm tall.
All basal, finely dissected, fernlike, 1-3 times divided, glabrous; ultimate segments of the leaves narrow and scarcely leaflike, usually less than 5 mm wide.
Inflorescence of compound umbels; flowers white or sometimes purplish, rarely purple; involucel bractlets 2-3 mm long, narrow lanceolate.
Oblong to elliptic, 7-12 mm long, wings more than 1 mm wide.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry slopes in the steppe and montane zones; frequent in SC and SE BC; S to ID and WA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Lomatium geyeri

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 330 723 1469
Slope Gradient (%) 10 40 90
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
50 190 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 4
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: BG(5), ESSF(1), ICH(2), IDF(11), PP(3)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References