| hamamelidae | (n) 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, Syn. subclass Hamamelidae |
| Hamamelidae | n. a group of chiefly woody plants considered among the most primitive of angiosperms; they have a perianth poorly developed or lacking, and flowers often unisexual and often in catkins and often wind pollinated. The group contains 23 families including the Betulaceae and Fagaceae (includes the Amentiferae); sometimes it is classified as a superorder. |