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)

E-Flora BC Static Map
Distribution of Crepis intermedia
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Species Information

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General:
Perennial herb from a taproot; stems erect, few, branched above, sparsely to densely grey-woolly, 20-70 cm tall.
Leaves:
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.
Flowers:
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.
Fruits:
Achenes mostly yellowish or brownish, 5.5-9 mm long, slender, weakly to strongly ribbed, narrowed above; pappus white, of hairlike bristles.
Notes:
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

Ecology

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

Minimum

Average

Maximum

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
Class
D
Number of field plots
 species was recorded in:
10
Modal BEC Zone Class
AT
All BEC Zones (# of stations/zone) species was recorded in: AT(3), BG(2), IDF(1), PP(3)

Climate

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

Related Databases

General References