天南星亚纲

[ noun ]
one of four subclasses or superorder of Monocotyledones; comprises about 6400 species in 5 families of trees and shrubs and terrestrial herbs and a few free-floating aquatics including: Palmae; Araceae; Pandanaceae and Lemnaceae
<noun.plant>

Arecidae \Arecidae\ n.
1. 1 one of four subclasses or superorder of Monocotyledones;
comprises about 6400 species in 5 families of trees and
shrubs and terrestrial herbs and a few free-floating
aquatics including: Palmae; Araceae; Pandanaceae: and
Lemnaceae.

Syn: subclass Arecidae
[WordNet 1.5]