异名：木棉子（本草經疏），棉花核（兰台轨范）。

Source: Seeds of Cottonwood, Mallow family. For details on the plant's morphology, see "Cotton".

Nature and flavor: "The Classic of the Materia Medica": "Pungent, hot, poisonous."

Pharmacological effects: See "Cotton Root".

Use and dosage: Internal use: decoction, 10-20 grams; or into pills, bulk. External use: decoction, 10-20 grams; or into pills, powder.

Contraindications: not to be taken by people with deficiency of yin and fire. Cotton seed, this product has the effect of tonifying the kidney and strengthening the waist, treating kidney deficiency and lumbago, foot and knee weakness, can be used in conjunction with cuscuta, bone marrow and other medicines. At the same time, cotton seed also has a lactation effect, applicable to the lack of milk disease.