Class Monocotyledoneae, monocots, מחלקה חד-פסיגיים 
  
Family Dioscoreaceae, 
 Yam Family, משפחת הטמוסיים 
  
Dioecious perennial herbs with subterranean tubers.
Net-veined, often heart-shaped leaves that sometimes are lobed. Flowers small in axillary clusters, spikes or racemes.The female flowers are sometimes solitary. Perianth persistent, the male flower campanulate, 6-lobed, the female flower deeply lobed, greenish to whitish. Ovary superior. The fruit is a capsule or a berry.
  
Genus Tamus, טמוס:
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