1.Tendril unbranched or bifurcate. Inflorescence usually a polychasium. Seeds elliptic, obovoid-elliptic, or obtriangular, surface smooth, corrugated, or with strumose protuberance or ribs.
卷须不分枝或叉。通常
花序一多歧聚伞花序。种子椭圆形,倒卵球形椭圆形,或倒三角形
,平滑
表面,具皱褶,或具
突起或肋。