Chǔ Shí (Paper Mulberry Fruit) (Globose-flattened, reddish-brown, rough reticulate texture, with a depression on the side, hard and brittle, easily crushed)

【Naming】

Chǔ Shí

 【Source】

Shen Nong Ben Cao Jing, Top Grade

 【Frequency of Use】

D

 【Botanical Origin】

The dried, ripe fruit of Broussonetia papyrifera Vent. (Paper Mulberry) of the Moraceae family.

 【Characteristics】

It is oblate-spheroid in shape, tapering at the top, and 1.5~2㎜ in diameter. The surface is reddish-brown, rough, and has fine longitudinal striations. One side has a concave groove, while the other side is noticeably raised, appearing as a ridge. The base has remnants of the fruit stalk. After peeling off the fruit peel, a white, oily embryo can be seen. It has a weak odor and a bland, oily taste.

 【Identification】

Illustrated Materia Medica: “It is best to take the leaves that resemble grape leaves, with lobes and seeds.” Classified Materia Medica: “The Illustrated Materia Medica says: There are two kinds of trees; it is best to take the leaves with seeds that resemble grape leaves.”
It is best to choose those that are dry, light reddish-brown in color, and free of impurities and fruit shells. Yellow and moldy ones are second best.

 【Category】

Fruits