Different names of pestle fine chaff (not recorded), Cooper bark (one thousand catties of Fang Yi), fine chaff (Sheng Huifang), pestle fine chaff (total record of granulation), rice bran (food materia medica of Wang Ying) and rice bran (new prescription).
The source is the seed coat of Gramineae rice.
Plant morphology is described in detail in japonica rice belt.