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
English: Monocotyledones, class Monocotyledones, Monocotyledonae, class Monocotyledonae, Liliopsida, class Liliopsida