01 n. a group of families of trees and shrubs and herbs having well-developed perianths and apocarpous ovaries and generally regarded as the most…
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1.
a group of families of trees and shrubs and herbs having well-developed perianths and apocarpous ovaries and generally regarded as the most primitive extant flowering plants; contains 36 families including Magnoliaceae and Ranunculaceae; sometimes classified as a superorder.