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

Hieracium lachenalii Suter
European hawkweed (common hawkweed)
Asteraceae (Aster family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #25481)

E-Flora BC Static Map
Distribution of Hieracium lachenalii
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Species Information

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Perennial herb from a short, stout rhizome; stems erect, usually solitary, hairy, the hairs bristly or starlike, or glabrous, exuding milky juice when broken, 20-80 cm tall.
Basal leaves well-developed, persistent, narrowly to broadly elliptic, stalked, toothed, 1.5-15 cm long, 0.3-2.0 cm wide, with non-glandular hairs, sometimes glabrous above, sometimes with starlike hairs below; stem leaves similar, 2-10, reduced upwards.
Heads with strap-shaped flowers, few to numerous, the stalks of the heads with non-glandular or glandular and starlike hairs; involucres 8-11 mm tall; involucral bracts narrowly lanceolate, graduated, obtuse to abruptly sharp-pointed with non-glandular or glandular and starlike hairs; ray flowers yellow.
Achenes 2.5-3.5 mm long; pappus dull white or tawny.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry roadsides, gravelly riverbeds, forest openings, waste areas and disturbed areas in the lowland and montane zones; frequent in WC and SW BC; introduced from Europe.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Hieracium lachenalii

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) 61 61 61
Slope Gradient (%) 0 0 0
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
180 180 180
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
7 7 7
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: CWH(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

Hieracium acuminatum Jord.
Hieracium vulgatum Fr.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References