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

Lomatium nudicaule (Pursh) J.M. Coult. & Rose
barestem desert-parsley (barestem biscuitroot)

Introduction to Vascular Plants

© Irmgard & Gerald Carter  Email the photographer   (Photo ID #5428)

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Distribution of Lomatium nudicaule
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Species Information

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Stout perennial herb from a taproot, glabrous, strongly glaucous; stems solitary to several, 20-90 cm tall.
Mostly basal, large, compound, 1-3 times divided; ultimate segments 3-30, entire or shallowly toothed, 2-9 cm long, 10-60 (rarely 4) mm wide, veiny, often stalked.
Inflorescence of compound umbels; flowers yellow, small, stalks of unequal length; involucels lacking.
Oblong to elliptic, 7-15 mm long, sometimes narrowed to a beaklike tip; ribs distinct with wings up to 1/2 the width of the body.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry rocky or grassy slopes and open woods in the lowland and steppe zones; locally common on SE Vancouver Island and the Gulf Islands, rare eastward in S BC; E to SW AB and S to UT and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Lomatium nudicaule

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) 27 850 1938
Slope Gradient (%) 0 37 84
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
23 186 315
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 1 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(1), CDF(9), ESSF(6), IDF(12), MS(4), PP(1)


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.

Synonyms and Alternate Names

Cogswellia nudicaulis (Pursh) M.E. Jones

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References