a. Bot. [f. mod.L. labiātus LABIATE + -flōr-us (f. flōr-, flōs FLOWER) + -OUS.] Having a labiate corolla. Also Labiatifloral a. (in recent Dicts.).
1855. Mayne, Expos. Lex., Labiatiflorus … labiatiflorous.
1880. Gray, Struct. Bot., 417. Labiatifiorous. Said of certain Compositae with bilabiate corollas.
