cal·li·op·sis 
(kăl′ē-ŏpsĭs)
(kăl′ē-ŏpsĭs)n.
A North American annual plant (Coreopsis tinctoria) in the composite family, widely cultivated for its showy flower heads with yellow rays and purple-red to brownish centers.
[New Latin : Greek kalli-, beautiful (from kallos, beauty) + Greek opsis, appearance; see -OPSIS.]