Herbs short-lived perennial with slender rhizomes, rarely annual, (10-)15-45(-60) cm tall, often pilose or puberulent, sometimes glabrescent distally. Stems simple or branched from base, angled. Basal leaves petiolate, often withered by flowering, 3-5-foliolate, rarely simple; petiole 1-6(-8) cm; leaf blade or terminal leaflet suborbicular, ovate, or lanceolate, 0.5-3 × 0.5-2.5 cm, dentate, crenate, or rarely subsinuate; lateral leaflets absent or 1 or 2 pairs. Middle cauline leaves 3-7-foliolate; petiole (1-)2-7(-8.5) cm, basally auriculate; auricles toothlike, linear, or lanceolate, (0.4-)1-3(-4) × 0.2-1(-1.5) mm; terminal leaflet lanceolate, elliptic, oblong, ovate, or suborbicular, (1-)1.3-4.5(-6) × (0.4-)0.6-2(-3) cm, sparsely pilose adaxially, often glabrous abaxially, with a petiolule (2-)4-14(-20) mm, base obtuse or cuneate, margin ciliate to ciliolate and dentate, crenate, sinuate, or rarely repand, apex acute or acuminate; lateral leaflets 1-3 pairs, shortly petiolulate to subsessile, similar to terminal one and often oblique at base. Uppermost leaves often trifoliolate, rarely simple. Fruiting pedicels ascending or divaricate, 0.5-1.8(-2.3) cm, straight, slender. Sepals oblong or nearly ovate, 2-3 × 1-1.5 mm, base not saccate. Petals white, obovate, (2.5-)3.5-5(-6) × 2-3 mm, not clawed. Median filament pairs 2.5-4 mm, lateral pair 2-3 mm; anthers oblong, 0.5-0.8 mm. Ovules 8-18 per ovary. Fruit linear, 1.5-2.8(-3) cm × 1-1.3 mm; valves smooth, sparsely pilose; style (0.5-)1-2.5(-3.5) mm. Seeds brown, narrowly oblong, 1.3-1.8 × 0.7-1 mm, wingless. Fl. Mar-Jul, fr. Apr-Sep.
Home
