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81b. Polygonum polystachyum var. longifolium J. D. Hooker, Fl. Brit. India. 5: 51. 1886.
长叶多穗神血宁 chang ye duo sui shen xue ning
Description from Flora of China
Leaf blade narrowly lanceolate or linear oblong, 8-15 × 1.5-3 cm.
One of us (Hong; see Pl. Syst. Evol. 186: 95–122. 1993) considers this to be a synonym of Persicaria wallichii (here treated as a synonym of Polygonum polystachyum var. polystachyum).
Forests, valleys; 2200-3800 m. Xizang, W Yunnan [India, Sikkim].
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