subclass Hamamelidae
subc·lass·ha·mamelidae
noun
1.
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
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WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.