1. Oxyria digyna (L.) Hill, Hort. Kew. 158. 1768; Boiss., l.c. 1004; Hook. f., l.c. 58; Losinsk., l.c.; Kitamura, Pl. W. Pak. & Afgh. 43. 1964; Tutin, l.c.; Cullen, l.c.; Rech.f. & Schiman-Czeika, l.c. 24, R.R.Stewart, Ann. Cat. Vasc. Pl. W.Pak. Kashm. 202. 1972; Bhopal & Chaudhri, l.c.; Hara in Hara et al., Enum. Fl. Pl. Nep. 3: 175. 1983; Grierson & D.G.Long, l.c. 175; Munshi & Javeid, l.c. 85. (Fig. 20, C-F).
Vern.: Amlu.
Rumex digynus L., Sp. Pl. 337. 1753.
Perennial herb, 25-45 cm tall, with prostrate or semierect glabrous, grooved stem. Leaves somewhat fleshy, radical, rarely cauline, glabrous; petiole 3-13 cm long, grooved; blade entire, orbicular, cordate, reniform to rounded-reniform, 2-4.5 cm in diameter, main veins more prominent below than above. Ochrea 0.75-1.5 cm long, brownish, acute, ± brittle. Flowers pedicellate, pedicel 1-2 mm long, accrescent in fruit, up to 3 mm, jointed below the middle, thickened above the joint. Perianth segments 4, pinkish white, outer 2 c.1.5 mm long, reflexed, avicularly folded, inner 2, 2-2.5 x 1-1.5 mm, obovate, adpressed to the fruit. Stamens 6, c. 2 mm long in two whorls, anthers basifixed. Ovary shorter than stamens. Fruit 2-winged, wings pinikish, orbicular, cordate, 2.5-3.5 mm across, equalling the nut.
Fl. Per.: May-August.
Type: Habitat in Alpibus Lapponicis (Sweden), Helveticis (Switzerland), Wallicis (Britiain). Herb. Linn. 464. 32 (LINN!).
A very common plant of high altitudes, grows in wet soil and shady areas. Useful as greens; Distribution: Same as that of the genus.
