- Monocotyledones, class Monocotyledones, Monocotyledonae, class Monocotyledonae, Liliopsida, class Liliopsida - 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
--1 is a kind of class
--1 is a member of
--1 has members:Angiospermae, class Angiospermae, Magnoliophyta, division Magnoliophyta, Anthophyta, division Anthophyta