Poria cocos is a part of Poria cocos with pine roots in its sclerotium. The original species is a lower plant and it is a fungus parasitic on pine trees. The medicinal part is the white part with pine roots in the middle of the dry sclerotia.
The common one is its sclerotia. Most of them are irregular blocks, spherical, flat, oblong or oblong, with different sizes. The epidermis is grayish brown or dark brown, with tumor-like shrinkage, and the interior is white and slightly pink, consisting of countless hyphae.
Extended data:
The shape of the dry and hardened core is the same as that of Poria cocos, but the root of a pine tree passes through the center. Thin, solid, silty, yellow-brown, cut pine roots with ring structure (tree rings). It is better to have thick meat and small roots.
Parasitic on the roots of Pinus koraiensis, Pinus massoniana, etc., buried 20 ~ 30cm underground. Distributed in Hebei, Henan, Shandong, Anhui, Zhejiang, Fujian, Guangdong, Guangxi, Hunan, Hubei, Sichuan, Guizhou, Yunnan, Shanxi and other places.
Baidu Encyclopedia-Fu Shen