Plants 15--20 cm tall. Rhizome creeping, subterete, stout, 2--35 cm. Stem solitary. Leaves shortly petiolate, ovate or broadly ovate, 7--9 × 4.5--5.5 cm. Peduncle 12--14 cm. Flowers 3--5 cm wide. Outer tepals green, ovate-lanceolate or elliptic-lanceolate, 3.2--3.5 × 1--1.2 cm; inner ones linear or broadly linear, 1.4--1.9 cm × 1--1.5 mm. Stamens short; filaments 2--3 mm; anthers 1--1.5 mm. Ovary depressed ovoid, 5.5--6.5 × 2.5--4 mm; stigma 3-lobed. Fl. Jun.

* 1600--1700 m. E Taiwan (Hualian Shi).