calliopsis 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}]
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]