Noun | 1. | Pandanales - families Typhaceae; Sparganiaceae; Pandanaceae plant order - the order of plants Arecidae, subclass Arecidae - 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 family Pandanaceae, Pandanaceae, screw-pine family - family of woody plants of the order Pandanales including pandanus cattail family, family Typhaceae, Typhaceae - perennial marsh plants with creeping rootstocks and long linear leaves |