Tendril unbranched or bifurcate. Inflorescence usually a polychasium. Seeds elliptic, obovoid-elliptic, or obtriangular, surface smooth, corrugated, or with strumose protuberance or ribs.
卷须不分枝或二叉。通常的花序聚伞花序。
子椭圆形,
形椭圆形,或
三角形的,平滑的表面,具皱褶,或具瘤状的突起或肋。