异名：Persicaria rudis (Meisn.) H. Gross (synonym)、Polygonum deflexipilosum Kitam. (synonym)、Polygonum esquirolii H. Lév. (synonym)、Polygonum paniculatum Blume var. rude (Meisn.) Steward (synonym)、Polygonum rude Meissn. (synonym)、Polygonum tsangschanicum Lingelsh. et Borza (synonym)

Polygonum molle D. Don var. rude (Meisn.) A. J. Li,西藏植物志1: 622. 1983.——P. rude Meisn. in DC. Prodr. 14 (1): 137. 1856. ——P. paniculatum Blume var. rude (Meisn.) Stew. in Contr. Gray Herb. 88: 106. 1930; Lauener in Not. Bot. Gard. Edinb. 40: 199. 1982. ——P. esquirolii Levl. in Fedde, Repert. Sp. Nov. 8: 171. 1910.——P. tsangschanicum Lingelsh. et Borza in Fedde, Repert. Sp. Nov. 13: 385. 1914——Aconogonum molle (D. Don) Hara var. rude (Meisn.) Hara, Fl. E. Him. 68. 1966.

本变种与原变种的区别是：茎具倒生的长硬毛。

产广西、贵州、云南及西藏。生山坡林下、山谷灌丛，海拔1400-3500米。印度东 北部、尼泊尔、不丹也有。