Page authors: Don Knoke, David Giblin
Hieracium aurantiacum
orange hawkweed
Specimens
Photos

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across southern Canada and northern U.S; widely distributed throughout eastern U.S.

Habitat: Roadsides, fields, meadows, pastures, forest edge, wastelots, and other disturbed areas at low to middle elevations.

Flowers: June-August

Origin: Introduced from Europe

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies, beetles, wasps

Description:
General:

Perennial from fibrous roots and long rhizomes, the bristly stems 2-9 dm. tall, with milky juice.

Leaves:

Leaves all basal except for 1 or 2 very small cauline leaves, with long bristles on both sides, oblanceolate-linear, up to 1 dm. long.

Flowers:

Heads several in a compact terminal cluster, the corollas all ligulate and bright red-orange.

Accepted Name:
Hieracium aurantiacum L.
Publication: Sp. Pl. 2: 801. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Hieracium aurantiacum checklist entry.

OregonFlora: Hieracium aurantiacum information.

E-Flora BC: Hieracium aurantiacum atlas page.

CalPhotos: Hieracium aurantiacum photos.

USDA Plants: Hieracium aurantiacum information.

38 photographs:
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