Dried Mature Semen : a flat, heart-shaped, 1-1. 9 cm long, 0.5-0.8 cm. Surface yellow or dark brown, pointed on one end, on the opposite ligenden dull round, curved, in the longitudinal direction is asymmetrical. On one side of the tip end of the short linear Helium, at the round end of the Chalaza to the upper end of history the end, deep-brown nerves visible. Thin Testa. 2 milky white, rich, oily cotyledons.

Odourless,taste bitter.