Mountain sorrel

Perennial. Rhizomes stout, 5-10 mm in diam. Stems solitary or several from rhizome, erect, 10-35 cm tall, usually glabrous. Leaves nearly all basal; petiole 3-12 cm; leaf blade reniform or orbicular-reniform, papery, abaxially sparsely hirtellous along veins, adaxially glabrous, base broadly cordate, margin subentire, apex obtuse. Inflorescence terminal, paniculate; bracts membranous, each 2-5-flowered. Pedicels slender, articulate below middle. Flowers bisexual. Perianth greenish or pinkish; outer tepals smaller, deflexed; inner ones accrescent in fruit, obovate, appressed. Filaments dilated at base. Achenes ovoid, broadly winged at margin; wings pink, membranous, denticulate. Fl. Jul, fr. Jul-Nov. Alpine slopes, grasslands, wet valleys; 1300-4900 m. [Afghanistan, Bhutan, India, Japan, Kashmir, Kazakhstan, Korea, Kyrgyz-stan, Mongolia, Nepal, Pakistan, Russia (Far East, Siberia), Sikkim, Tajikistan; SW Asia, Europe, North America]