1.Tendril unbranched or bifurcate. Inflorescence usually a polychasium. Seeds elliptic, obovoid-elliptic, or obtriangular, surface smooth, corrugated, or with strumose protuberance or ribs.
1.卷须不二叉。通常
花序一多歧聚伞花序。
子椭圆
,倒卵球
椭圆
,
倒三
,平滑
表面,具皱褶,
具瘤状
突起
肋。