1.Definition: comprising seed plants that produce an embryo with a single cotyledon and parallel-veined leaves: includes grasses and lilies and palms and orchids; divided into four subclasses or superorders: Alismatidae; Arecidae; Commelinidae; and Liliidae

Related Noun(s):class liliopsida, class monocotyledones, liliopsida, monocotyledonae, monocotyledones

Category: Plants