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Pakistan | Family List | Pakistan V. 205 | Polygonaceae | Polygonum

3. Polygonum roylei Bab. in Trans. Linn. Soc. London. 18: 115. 1838; R.R.Sewart, Ann. Cat. Vasc. Pl. W. Pak. & Kashm. 212. 1972.

Prostrate, branched, perennial herb. Stems many, branched from base, angular with scabrae. Leaves 10-15 x 3-5 mm, linear, entire, acute to obtuse, nerves ± obscure, pellucid, gland dotted on both sides. Ochreae 5-7 (-8) mm long, not covering the internodes, ovate, hyaline, with 2 short but stout nerves, acute. Flowers axillary, ± sessile. Ochreolae small, ovate. Tepals 5, ovate, c. 2 mm long.. Stamens 4-5, filaments short. Ovary biconvex, with 2 styles and capitate stigmas. Nuts biconvex, dull black, striate.

Type: Theog and Phagoo, in June.

A rare or under-collected species. Differs from P. recumbens Royle ex Bab. on the basis of linear leaves and dull black nuts. Grows on the dry slopes, between 3000-4000 m; Distribution: Kashmir.


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