Definition of

Liliopsida

  1. (noun, plant) 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

via WordNet, Princeton University

Alternate forms of Liliopsida

Hypernyms: class

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