Page authors: Don Knoke, David Giblin
Hypochaeris glabra
smooth cat's-ear

Distribution: Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; British Columbia to California, also from Texas to the northeastern U.S.

Habitat: Roadsides, rocky balds, meadows, wastelots, and other disturbed open areas at low elevations, often where sandy.

Flowers: May-June

Origin: Introduced from Europe

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Bumblebees, bees, flies, beetles, wasps


Tap-rooted, glabrous annual or winter annual, 1-4 dm. tall, sparingly branched, nearly naked, with milky juice.


Leaves all basal, oblanceolate, toothed or pinnatifid, 3-35 cm. long and 7-35 mm. wide.


Heads several or solitary, terminating the branches, not showy, opening only in full sun; involucre 8-10 mm. high, the bracts imbricate; corollas all ligulate, yellow, about the same length as the involucre and only twice as long as broad; receptacle covered with chaffy bracts; pappus of plumose bristles, except the outer merely barbellate and shorter.


Achenes 4-5 mm. long, with small, sharp projections on the nerves, and with a well-developed, slender beak except for the outer achenes.

Accepted Name:
Hypochaeris glabra L.
Publication: Sp. Pl. 2: 811. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Hypochaeris glabra in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Hypochaeris glabra checklist entry

OregonFlora: Hypochaeris glabra information

E-Flora BC: Hypochaeris glabra atlas page

CalPhotos: Hypochaeris glabra photos

19 photographs:
Group by