Hypochaeris glabra L.
smooth cat's-ear (smooth catsear)
Asteraceae (Aster family)

Introduction to Vascular Plants


© Val George     (Photo ID #58472)


E-Flora BC Static Map

Distribution of Hypochaeris glabra
Click here to view the full interactive map and legend

Species Information

Annual herb from a taproot; stems erect, solitary or more often several, simple or sparingly branched, minutely bristly or glabrous, exuding milky juice when broken, 10-40 cm tall.
Basal leaves well-developed, oblanceolate, entire or lobed, glabrous to fringed on the margins, 2.5-15 cm long and 7-35 mm wide; stem leaves lacking or if present then minute and bractlike.
Heads with strap-shaped flowers, solitary to many in a terminal, flat-topped inflorescence; involucres 8-10 mm tall, 0.5-1.5 cm wide, increasing to 17 mm tall in fruit; involucral bracts spirally arranged, lanceolate, glabrous; ray flowers yellow.
Achenes nerved with minute projections, 4-5 mm long, inner ones with a well-developed beak as long as the body; pappus double, the inner ones of feathery bristles, the outer ones shorter and usually merely finely-barbed.

SourceThe Illustrated Flora of British Columbia


If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.


Ecological Framework for Hypochaeris glabra

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)
210 122 275
Slope Gradient (%)
30 2 60

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

177 60 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 0 6
Modal Nutrient Regime
# of field plots
 species was recorded in:
Modal BEC Zone Class

All BEC Zones (# of stations/zone) species was recorded in

CDF(4), CWH(2)

Habitat and Range

Roadsides, pastures and waste areas in the lowland zone; frequent in SW BC, known from S Vancouver Island and the Gulf Islands; introduced from Europe.

SourceThe Illustrated Flora of British Columbia