Page authors: Don Knoke, David Giblin
Tragopogon dubius
yellow salsify

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

Growth Duration: Annual, Biennial

Conservation Status: Not of concern

Pollination: Bees, flies


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


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


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.


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

OregonFlora: Tragopogon dubius information

E-Flora BC: Tragopogon dubius atlas page

CalPhotos: Tragopogon dubius photos

73 photographs:
Group by