Noun | 1. | ![]() liliopsid genus, monocot genus - genus of flowering plants having a single cotyledon (embryonic leaf) in the seed family Graminaceae, family Gramineae, family Poaceae, Graminaceae, Gramineae, grass family, Poaceae - the grasses: chiefly herbaceous but some woody plants including cereals; bamboo; reeds; sugar cane rice - annual or perennial rhizomatous marsh grasses; seed used for food; straw used for paper |