Page authors: Don Knoke, David Giblin
Hieracium umbellatum
narrowleaf hawkweed, umbellate hawkweed
WTU specimens
Other herbaria

Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska south to northwest Oregon, east across the northern half of North America to the Atlantic Coast; circumboreal.

Habitat: Moist places in thickets and open woods.

Flowers: July-September

Origin: Native

Conservation Status: Not of concern

Description:
General:

Perennial from a short rhizome, the stem 4-12 dm. tall, glabrous below, becoming stellate-puberulent above, without long, spreading hairs, and with milky juice.

Leaves:

Leaves alternate, the basal and lower cauline small and soon deciduous, the others, except for the reduced upper ones, nearly alike in size and shape; leaves sessile but not clasping, up to 10 cm. long and 2 cm. wide, with a few coarse, irregular teeth, and short, stiff hairs on the margins.

Flowers:

Heads several in an open inflorescence, 40- to 110-flowered; involucre 6-13 mm. high, its bracts imbricate, glabrous; corollas ligulate, yellow.

Fruits:

Achene.

Accepted Name:
Hieracium umbellatum L.
Publication: Sp. Pl. 2: 804. 1753. 1753.

Synonyms & Misapplications:
Hieracium canadense Michx. [HC]
Hieracium kalmii L.
Hieracium umbellatum L. ssp. umbellatum
Additional Resources:

PNW Herbaria: Specimen records of Hieracium umbellatum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Hieracium umbellatum checklist entry.

E-Flora BC: Hieracium umbellatum atlas page.

CalPhotos: Hieracium umbellatum photos.

USDA Plants: Hieracium umbellatum information.

20 photographs:
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