Poria cum Radix Pino (茯神, Fú Shén) is a specialised preparation of Wolfiporia extensa in which the fungal sclerotium has grown directly around the root of a pine tree. This portion of the Poria fungus, with the pine rootlet at its core, is considered by classical Chinese medicine to have a stronger action on the Heart channel and a more pronounced ability to calm the Shen (spirit/mind) than ordinary Poria (Fú Líng). It shares the sweet, bland, neutral nature of its parent herb but directs its action more specifically to the Heart and Spleen, making it the preferred form in formulas for emotional and psychological disturbance.

Classical texts explain Fú Shén's superior Shen-calming effect through the concept of 'pine holding the spirit' — the pine root at the core symbolically anchors the mind. Clinically, it is used for insomnia, fright palpitations, poor memory, forgetfulness, and anxiety arising from Heart deficiency or Heart-Spleen dual deficiency. It appears in formulas such as Gui Pi Tang, Tian Wang Bu Xin Dan, and An Shen Ding Zhi Wan. Modern research attributes its calming effects to polysaccharides that modulate neurotransmitter activity and support GABAergic pathways, supporting its traditional role as a gentle, nourishing sedative.

Fú Shén has been distinguished from common Poria in Chinese medical literature since the Tang Dynasty, valued specifically for its concentrated Heart-calming properties in an age when emotional illness and sleep disorders were recognised as critical clinical concerns.