Page authors: Don Knoke, David Giblin
Coreopsis tinctoria
calliopsis, Columbia coreopsis, golden tickseed
WTU specimens
Other herbaria

Distribution: Occurring chiefly east of the Cascades crest in Washington; widely distributed throughout North America except at northernmost latitudes.

Habitat: Open and disturbed areas at low to mid elevations where seasonally moist.

Flowers: June-August

Origin: Native

Conservation Status: Not of concern

Description:
General:

Fibrous-rooted annual, 3-12 dm. tall, with scanty foliage.

Leaves:

Leaves pinnatifid or bipinnatifid, the ultimate segments linear or linear-elliptic, or the upper leaves sometimes entire;

Flowers:

Heads fairly numerous, on long slender peduncles; involucre 5-9 mm. high, the bracts in two series, joined at the base, the outer bracts shorter and linear; ray flowers orange-yellow, 1-2 cm. long, with a prominent reddish-brown blotch at the base; disk flowers darker; receptacle flat, covered with chaffy, linear, pointed bracts.

Fruits:

Achenes black, 2-3 mm long, without wings or beak, the two pappus teeth minute or wanting.

Accepted Name:
Coreopsis tinctoria Nutt.
Publication: J. Acad. Nat. Sci. Philadelphia. 2: 114. 1821. 1821.

Synonyms & Misapplications:
Coreopsis atkinsoniana Douglas ex Lindl. [HC]
Coreopsis tinctoria Nutt. var. atkinsoniana (Douglas ex Lindl.) H.M. Parker ex E.B. Sm.
Coreopsis tinctoria Nutt. var. tinctoria
Additional Resources:

PNW Herbaria: Specimen records of Coreopsis tinctoria in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Coreopsis tinctoria checklist entry.

E-Flora BC: Coreopsis tinctoria atlas page.

CalPhotos: Coreopsis tinctoria photos.

USDA Plants: Coreopsis tinctoria information.

18 photographs:
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