Rhizome terete, 3--6 mm thick. Leaves solitary; petiole 9--17.5 cm; leaf blade oblong-elliptic to elliptic-lanceolate, 14--21 × 6--8.5 cm. Scape 1.5--5 cm; bracts ca. 4. Flower solitary. Perianth blue-purple, subcampanulate, 8-lobed apically; tube 0.8--1 × 1.3--1.6 cm; lobes triangular-lanceolate, 9--10 × 6--7 mm, adaxially with 2 papillose keels distally, basally expanded inward forming subulate appendages connate into a ring. Stamens 8, inserted at base of perianth tube, subsessile; anthers ovate, ca. 4 mm. Pistil 8--10 mm; stigma peltate, orbicular, large, 1--1.2 cm in diam., convex at center, 4-parted and 12-lobed at margin. Fl. Jun. 2 n = 38*.

* Shady and moist places on limestone hillsides. WC Guangxi (Long’an Xian).