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Polygonum aviculare Linnaeus var. aviculare
Sichuan: Rangtang (Zamtang) Xian. NW of the city of Rangtang (Zamtang) on road toward Sêrtar Xian along the Du-ke He ( Du-ke River). Meadows and shrub thickets along small stream flowing into the Du-ke He; thickets on slopes and open areas around outcropping ledges. 32°29'18"N, 100°45'53"E; 3050-3100 m.
Open, somewhat disturbed, dry, stony places in meadow. Perianth cleft ca. 2/3 to base, outer segments green, inner segments pinkish white; anthers yellow; achenes densely granular striate.
D. E. Boufford, K. Fujikawa, S. L. Kelley, R. H. Ree, B. Xu, D. C. Zhang, J. W. Zhang, T. C. Zhang, W. D. Zhu
39053 5 August 2007

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