The Collaborative International Dictionary of English v.0.48:
Tidytips \Ti"dy*tips`\, n. (Bot.) A California composite plant (Layia platyglossa), the flower of which has yellow rays tipped with white. [1913 Webster]WordNet (r) 3.0 (2006):
Layia platyglossa n 1: California annual having flower heads with yellow rays tipped with white [syn: tidytips, tidy tips, Layia platyglossa]