Herbs. Rhizomes horizontal, ca. 3 mm in diam., internodes less than 1 cm. Leaves paired; petiole 10-14 cm, villous; leaf blade uniformly colored, reniform-cordate or subcordate, 3-4 × 6-7.5 cm, abaxial surface and along margin densely pubescent, adaxial surface sparsely pubescent, base cordate, lateral lobes ca. 0.2 × 0.3 cm, apex rounded or obtuse; cataphylls broadly ovate, ca. 1 × 1 cm. Peduncle recurved, ca. 2.5 cm. Calyx yellowish brown, campanulate, 1.5-2 × 1-1.5 cm; sepals free beyond attachment to ovary, abaxially brown pubescent; pseudotube subglobose, 0.5-1.0 × 1-1.5 cm; lobes erect or spreading, triangular-lanceolate, ca. 1 × 0.4 cm, apex gradually narrowed to a slender cauda 2-4 mm. Stamens 12; filaments longer than anthers; connectives extended beyond anthers, awl-shaped. Ovary inferior. Styles connate, apex 6-cleft, lobes notched; stigmas at base of style lobe notches. Fl. May.
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