Tendril unbranched or bifurcate. Inflorescence usually a polychasium. Seeds elliptic, obovoid-elliptic, or obtriangular, surface smooth, corrugated, or with strumose protuberance or ribs.

卷不分枝或二叉。通常花序一多歧聚伞花序。子椭圆形，倒卵球形椭圆形，或倒三角形，平面，具皱褶，或具瘤状突起或肋。