單子葉植物綱
Monocotyledonae
n : 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 [syn: {Monocotyledones}, {class
Monocotyledones}, {class Monocotyledonae}, {Liliopsida},
{class Liliopsida}]