Calliopsis, Columbia Coreopsis, Golden Tickseed
Coreopsis tinctoria var. atkinsoniana
Synonyms: Coreopsis atkinsoniana, Coreopsis tinctoria var. tinctoria
The photo at right shows the involucral bracts and underside of the ray flowers of Columbia coreopsis from The Dalles Riverside Park........ October 7, 2006.
Columbia coreopsis is a fairly pretty winter annual or biennial with fibrous roots, branched stems, and scant foliage from 20-120 cm in height. The herbage is entirely hairless. The lower leaves are pinnate or bipinnate with linear or linear-elliptic leaflets. The upper leaves are simple and entire.
The heads are numerous with both disk and ray flowers. The disks are dark brown or reddish-brown, and the rays are yellow-orange (1-2 cm long). The base of the rays are often marked with orange. The involucre is smooth, 6-10 mm tall, with linear to lanceolate bracts.
Columbia coreopsis is a wildflower of moist river banks.
Columbia coreopsis is a native of the northern Great Plains, from Saskatchewan to South Dakota.
In the Pacific Northwest, it is found along the Columbia River (from British Columbia, northern Idaho, and western Montana) downstream to Portland, OR), and several of its tributaries (the Okanogan, Spokane, and Clark Fork Rivers).
