subclass hamamelidae

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a group of chiefly woody plants considered among the most primitive of angiosperms; perianth poorly developed or lacking; flowers often unisexual and often in catkins and often wind pollinated; contains 23 families including the Betulaceae and Fagaceae (includes the Amentiferae); sometimes classified as a superorder