mountain daisy
/ˌmaʊntɪn ˈdeɪzi/noun
1 NZ. Any of various plants of the genus Celmisia (family Asteraceae (Compositae)), chiefly having flowers with yellow discs and white rays.
2 US. Any of several plants of the family Asteraceae (Compositae) growing in mountainous country; especially either of two fleabanes, Erigeron coulteri and E. peregrinus, and hoary blackfoot, Melampodium cinereum.
Origin
Late 18th century (in an earlier sense). From mountain + daisy.