Tuber fleeceflower is a species of flowering plant in the buckwheat family polygonaceae.
It is also known as Chinese (climbing) knotweed and is native to central and southern China.
It is a perennial herbaceous vine that grows 2 to 4 m tall from a tree tuber.
The leaves are broadly arrowhead-shaped and have a whole margin.
The tuber fleeceflower is one of the most popular perennial herbal medicines and is registered in the Chinese Pharmacopoeia.
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