Plants 60--85 cm tall, glandular pubescent. Rhizome short. Stems branched, sulcate. Cauline leaves ca. 9; petiole ca. 4 cm; leaf blade 3-pinnate, 5--9.5 cm; petiolule 0.5--1 mm, with hairs 0.2--0.4 mm; leaflet blade obovate to orbicular, 0.7--2.5 × 0.7--2.5 cm, papery, abaxially glandular pubescent, base rounded or subcordate, margin 3-lobed; lobes entire or 2-or 3-toothed; veins flat on both surfaces. Inflorescence paniculate, few flowered. Pedicel slender, 3--20 mm. Sepals early deciduous, yellow-white, elliptic, pubescent abaxially. Stamens ca. 25, ca. 5 mm, glabrous; filament narrowly linear or filiform; anther oblong, ca. 2 mm, apex obtuse or mucronate. Carpels 4--8; style persistent, ca. 1.2 mm; stigma triangular winged or broadly so. Achenes sessile; body fusiform or obliquely ovoid, ca. 3 mm; veins 2 or 3. Fl. Jun--Aug.
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