The Collaborative International Dictionary
Liguliflorous
Liguliflorous \Lig`u*li*flo"rous\ (l[i^]g`[-u]*l[i^]*fl[=o]"r[u^]s), a. [Ligule + L. flos, floris, a flower.] (Bot.) Bearing only ligulate flowers; -- said of a large suborder of composite plants, such as the dandelion, lettuce, hawkweed, etc.
Wiktionary
liguliflorous
a. (context botany English) Bearing only ligulate flowers.