百合纲

[ noun ]
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
<noun.plant>

Liliopsida \Liliopsida\ n.
A class comprising seed plants that produce an embryo with a
single cotyledon and parallel-veined leaves. It includes the
grasses; lilies; palms; and orchids. It is divided into four
subclasses or superorders: Alismatidae; Arecidae;
Commelinidae; and Liliidae.

Syn: Monocotyledones, class Monocotyledones, Monocotyledonae,
class Monocotyledonae, class Liliopsida.
[WordNet 1.5]