Coreopsis tinctoria n 1: North American annual widely cultivated for its yellow flowers with purple-red to brownish centers; in some classifications placed in a subgenus Calliopsis [syn: {calliopsis}, {Coreopsis tinctoria}]
Coreopsis \Co`re*op"sis\ (k[=o]`r[-e]*[o^]p"s[i^]s), prop. n. [NL., fr. Gr. ko`ris bug + 'o`psis appearance.] (Bot.) A genus of herbaceous composite plants, having the achenes two-horned and remotely resembling some insect; tickseed. {Coreopsis tinctoria}, of the Western plains, the commonest plant of the genus, has been used in dyeing. [1913 Webster]
Calliopsis \Cal`li*op"sis\, n. [NL., fr. Gr. pref. kalli- (fr. kalo`s beautiful) + 'o`psis appearance.] (Bot.) A popular name given to a few species of the genus {Coreopsis}, especially to {Coreopsis tinctoria} of Arkansas. [1913 Webster]