class - (biology) a taxonomic group containing one or more orders

class Liliopsida, class Monocotyledonae, class Monocotyledones, Liliopsida, Monocotyledonae, Monocotyledones - 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

Arales, order Arales - Araceae; Lemnaceae

order Pandanales, Pandanales - families Typhaceae; Sparganiaceae; Pandanaceae

order Palmales, Palmales - coextensive with the family Palmae: palms