Plants slender. Flowering stems simple, 20-50 cm. Leaves in basal rosette and cauline, basal mostly 3-lobed, cauline (2-3), 3-foliolate, reduced, similar to basal (except lobes longer); stipules large, decurrent on petiole base, (margins fimbriate); petiole to 6 cm; blade dark green, orbiculate, (base cuneate), surfaces nearly glabrous or sparsely to densely hairy. Inflorescences 2-3, nodding, 4-14-flowered racemes, simple. Pedicels equaling or shorter than hypanthium. Flowers deciduous if unfertilized, not fragrant, horizontal; hypanthium obconic-elongate at anthesis, becoming very elongate in fruit, open at throat, (length 2 times diam.); sepals erect, triangular; petals (exserted), widely spreading, white or pink, often with prominent venation, obovate-rhombic, narrowly clawed, deeply 3-lobed, (usually with prominent sinuses extending 1/2+ to base), 7-16 mm, ultimate margins entire; ovary 1/2+ inferior; styles included in fruit; stigma papillae in narrow subapical band. Seeds 0.5-0.6 mm, wrinkled or smooth. 2n = 14, 21, 28, 35.
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