Bistorta incana is a species of flowering plant in the family Polygonaceae, native to Korea and Manchuria.
Taxonomy Bistorta incana was first described in 1911 by Takenoshin Nakai as Polygonum bistorta var. incanum. In 1922, he elevated it to species status.Mori, T. (1922) An Enumeration of Plants Hitherto Known from Corea: 130
Description It is an erec perennial herb growing to a height of 1 m. The stem leaves are opposite, ovate- lanceolate, have short or no petioles, and the margins are entire. The backs of the leaves are covered with dense white hairs, giving them a silvery white color. The light-red flowers bloom from June to September, and hang in spikes at the ends of flower stalks that are 80-100 cm long. The fruit is a triangular achene.
In Korea, it is native to Yanggang-do and Hamgyeong-do, and grows in alpine meadows.
Uses In Korea, it is used as a dye, and its rhizome is used as medicine.
References
External links Bistorta incana: Occurrence data from GBIF