Plants 60--100 cm tall, glandular pubescent. Stems branched. Stipules membranous; petiole 1.5--4 cm; leaf blade 3-or 4-pinnate, 8--15 cm; leaflet blade orbicular-rhombic or broadly ovate, 4--12 × 3.5--10 mm, herbaceous, apex 3--5-lobed; veins slightly raised abaxially, flat adaxially. Inflorescence paniculate, few flowered. Pedicel 1--3 cm, glandular pubescent. Sepals 4 or 5, purplish tinged, ovate or narrowly so; 10--15 × 5--7 mm. Stamens many, ca. 8 mm; filament filiform; anther yellow, linear, 2--2.8 mm, apex mucronate. Carpels 10--15; style ca. 3 mm; stigma inconspicuous. Achene stipe recurved, ca. 1.2 mm; body hemiobovoid, ca. 4.5 mm. Fl. Jun--Aug.
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