coreopsis (kōrēŏpˈsĭs) [key], or tickseed, names for species of Coreopsis, a chiefly North American genus of the family Asteraceae (aster family). They are easily cultivated annuals or perennials with daisylike heads of flowers in various colors—commonly yellow or variegated. Garden kinds are sometimes called calliopsis. Coreopsis is classified in the division Magnoliophyta, class Magnoliopsida, order Asterales, family Asteraceae.
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