Page authors: Don Knoke, David Giblin
Tragopogon dubius
yellow salsify
WTU specimens
Other herbaria
WTU images

Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.

Habitat: Roadsides, fields, meadows, wastelots, overgrazed areas, and other disturbed open areas at low to middle elevations.

Flowers: May-September

Origin: Introduced from Europe

Conservation Status: Not of concern

Description:
General:

Biennial from a fleshy taproot, or occasionally annual, the stem usually branched, 3-10 dm. tall, the juice milky.

Leaves:

Leaves elongate, uniformly tapering from base to apex, entire, not recurved, mostly glabrous but with some loose, wooly hairs in the axils.

Flowers:

Heads solitary at the ends of branches, the peduncles enlarged and hollow under the heads; involucral bracts in a single series, equal, about 13, 2.5-4 cm. long in flower, distinctly surpassing the pale, lemon-yellow, ligulate corollas, elongating to 4-7 cm. in fruit; pappus of a single series of whitish, uneven-length, plumose bristles, the plume branches interwebbed.

Fruits:

Achenes slender, 25-36 mm. long, gradually narrowed to the stout beak.

Accepted Name:
Tragopogon dubius Scop.
Publication: Fl. Carniol. ed. 2. 2: 95. 1772.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Tragopogon dubius in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Tragopogon dubius checklist entry.

E-Flora BC: Tragopogon dubius atlas page.

CalPhotos: Tragopogon dubius photos.

USDA Plants: Tragopogon dubius information.

53 photographs:
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