Herbs perennial, 15-20 cm tall. Stem, branches, petioles, inflorescence, and pedicels crisped pubescent. Petiole short; leaf blade papery; lower leaves ovate, small; upper leaves ovate to ovate-lanceolate, large, 1.5-2 cm × 5-7 mm, abaxially mostly glabrous but pubescent on midvein, adaxially sparsely puberulent, lateral veins indistinct, base obtuse, margin recurved, apex acuminate, mucronate. Racemes opposite to leaves, 1.5-2 cm, 3-8-flowered; bracteoles 3, caducous. Flowers ca. 6 mm. Sepals 5, persistent, ciliate; outer sepals 3, pubescent, upper one boatlike, ca. 4 mm; inner sepals 2, obovate, ca. 6 × 3 mm, apex acuminate, subfalcate. Petals 3, connate in lower 1/2; lateral petals elliptic, 3.5-4 mm, inside pubescent at base, apex rounded, retuse; keel 4.5-5 mm, apex with 2 fascicles of linear 4-lobed appendages. Stamens 8; filaments ca. 4.5 mm, lower 2/3 united into an opening tube adnate with petals, tube upper 1/2 2-lobed, ciliate; anthers ovoid. Ovary globose, ca. 2 mm in diam., winged; style ca. 3 mm, apex curved; stigmas 2, spaced. Capsule orbicular, ca. 4 mm in diam., broadly winged and ciliate, apex retuse. Seeds black, ovoid, ca. 3 mm, ca. 2 mm in diam., white hispidulous; strophiole white, 3-lobed, ca. 1/2 as long as seeds. Fl. and fr. Jul-Sep.
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