Coreopsis tinctoria Nutt.
golden tickseed (Atkinson's coreopsis)
Asteraceae (Aster family)

Introduction to Vascular Plants


© Jamie Fenneman     (Photo ID #14571)


E-Flora BC Static Map

Distribution of Coreopsis tinctoria
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In BC, we presently recognize the varieties of this species, although Flora North America does not. Var. atkinsoniana is a rare native in BC and ranges south to the northwestern states, while var. tinctoria is native to eastern North America and is often grown in gardens and occasionally escapes, but it does not persist in BC.

Note Author: Frank Lomer, Honourary Research Associate, University of British Columbia Herbarium.

Species Information

Annual or biennial herb from a fibrous root; stems erect, glabrous, branched, 0.3-1.2 m tall.
Lower stem leaves opposite, pinnately cut or bipinnately cut, the ultimate segments linear or linear-elliptic, 5-16 cm long, including the stalk; the upper leaves pinnately divided into 3-5 linear segments or entire.
Heads with ray and disk flowers, several to numerous on long, slender stalks at the end of the branches; involucres 6-10 mm tall; involucral bracts markedly different, the inner 6-8 mm long, egg-shaped, brown with yellow margins, the outer reduced, 7-8, narrowly triangular, obtuse, 2-3 mm long; ray flowers orange-yellow, often with a purplish-brown basal spot, about 8, 1-2 cm long; disk flowers purplish-brown; receptacular bracts linear-oblong, orange-red.
Achenes black, 2-3 mm long, margins narrowly-winged; pappus lacking or of 2 small teeth.

SourceThe Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Brown
Present over the Summer
Source:  The USDA

Habitat and Range

Moist river banks in the steppe zone; rare in extreme SC BC; S to WA and N OR.

SourceThe Illustrated Flora of British Columbia