Stem anatomy . Primary vascular tissue comprising a ring of bundles. Internal phloem absent. Included' phloem absent. Reproductive type, pollination .
Unisexual flowers present .
Gynoecium of male flowers pistillodial to absent . Floral nectaries present, or absent. Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit racemose. Free hypanthium absent.