Polygonum alpine

Polygonum alpine perennial herb, the stems are usually slightly pubescent, branched from the base, loosely spreading, and 10-30(40) cm high. Stipules sheaths with sparse hairs; The leaves are ovate-lanceolate or lanceolate, 3-5(7) cm long and 0.7-1.5 cm wide. The base is slightly rounded to broadly wedge-shaped or wedge-shaped, the apex is tapering, slightly blunt, the surface is usually hairless, the back is sparsely covered, and the edge is ciliate. Panicle, loosely spreading, with many leaves at the lower part and lacking at the upper part; Perianth is about 2.5-3 mm long, 3.5 mm long in fruit, 5-parted; Stamens 8, ovary glabrous, style 3, stigma capitate. Nutlets trigonous, 2.8-3.3 mm long, not exceeding perianth segments, enclosed in or equal to perianth, or sometimes slightly exposed. Born on a bare rock in a high mountain. Distributed in Siberia, China (Northeast), Korea and Japan.
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