Herbs, perennial, 1-1.5 m tall, with stout, horizontal rhizome. Leaves 2-or 3-pinnately compound (upper leaves often simple); petiole 2-15 cm; petiolules 1-5 mm; leaflets 3-9 per pinna, broadly ovate, 1-3.5 × 1-2 cm, membranous, abaxially slightly pilose to glabrescent on veins, adaxially glabrous to slightly pilose-scabrid, secondary veins 4 or 5 pairs, subconspicuous, tertiary veins subconspicuous abaxially, base cordate to obtuse, margin deeply incised and biserrate (teeth setose, acuminate), apex of terminal leaflets long acuminate, lateral leaflets often obtuse. Inflorescence a terminal or axillary corymb of umbels, sparsely pilose to glabrescent; primary axis to 5 cm; bracts linear-lanceolate, small; umbels racemosely arranged, 5-12-flowered; pedicels 1-4 mm. Ovary (3-)5-carpellate; styles (3-)5, free. Fruit subglobose, ca. 5 mm in diam.; styles persistent, united to middle, apically free, recurved. Fl. Jun, fr. Aug.
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