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

Crepis intermedia A. Gray
grey hawksbeard (limestone hawksbeard)
Asteraceae (Aster family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #14073)

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Distribution of Crepis intermedia
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Species Information

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Perennial herb from a taproot; stems erect, few, branched above, sparsely to densely grey-woolly, 20-70 cm tall.
Basal leaves narrowly elliptic in outline, mostly 1-4 dm long, long-stalked, pinnately cut with lanceolate, abruptly sharp-pointed, entire or toothed segments, sparsely to densely grey-woolly throughout; stem leaves similar to the basal ones, becoming reduced upwards.
Heads with strap-shaped flowers, mostly 10-60 in a flat- to round-topped inflorescence; involucres 10-16 mm tall, cylindric-bell-shaped; involucral bracts grey, short woolly-hairy or less often more or less glabrous, occasionally glandular bristles near the tips of the inner ones, the outer ones deltoid, the longest less than 1/2 as long as the 7-12 inner ones, these lanceolate, obtuse; ray flowers yellow, 14-30 mm long.
Achenes mostly yellowish or brownish, 5.5-9 mm long, slender, weakly to strongly ribbed, narrowed above; pappus white, of hairlike bristles.
This "species" consists of a group of polyploid apomicts which combine the characters of C. occidentalis and either C. acuminata Nutt. or C. pleurocarpa A. Gray.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry slopes and open forests in the montane zone; infrequent in S BC east of the Coast-Cascade Mountains; E to AB and S to WY, CO and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Crepis intermedia

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) 366 1161 2028
Slope Gradient (%) 8 52 100
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
160 237 315
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 3
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: AT(3), BG(2), IDF(1), 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.

Synonyms and Alternate Names

Psilochenia intermedia (A. Gray) W.A. Weber

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References