Tendril unbranched or bifurcate. Inflorescence usually a polychasium. Seeds elliptic, obovoid-elliptic, or obtriangular, surface smooth, corrugated, or with strumose protuberance or ribs.
Both nature upper eyelid goffer and upper vessel net of margo palpebrae were used as a datum line.According to the base line,double eyelid plasty was performed.