Source: The seeds of legumes Chixiaodou or Adzuki bean.
Latin plant names: 1. Vigna umbellata (Thunb.) Ohwi et Ohashi [Dolichos umbellatus Thunb.; phaseolus calcaratus Roxb.] 2. Vigna angularis (Willd.) Owhwi et Ohashi [Dolichos angularis Willd.; Phaseolus (Willd.) WFWight ]
Harvesting and storage: In autumn, when the pods are mature and not cracked, the whole plant is taken out, dried and seeds are removed, impurities are removed, and dried in the sun.