Also called “tickseed,” wild coreopsis is closely related to cultivated
ornamentals of the same name. The desert species inhabits open locations
at elevations between 1,500 and 2,500 feet in southern Arizona, southern
California, and Baja California. Plants usually bloom between February
and May. The closely related _Coreopsis bigelovii_ is a southern
California annual having somewhat larger flowers, up to 2 inches in
diameter, with orange centers. Flower stems are naked, with the leaves
clustered at their bases.
_Coreopsis douglasii_ Sunflower Family
[Illustration: DOUGLAS COREOPSIS]