Rhizome subterete, 5--6 mm thick. Leaves 2- or 3-tufted; leaf blade lorate to lorate-oblanceolate, 26--65 × 1--2.5 cm, basally gradually narrowed into inconspicuous petiole. Scape solitary, 1--2.5 cm, slender; bracts 2--4. Flower solitary, small. Perianth blue-green, tinged and speckled with purple, urceolate, 4.5--5 × 4--6 mm; lobes erect, deltoid, 1--2 × 1--1.5 mm. Stamens (4--)6, inserted at base of perianth tube, subsessile; anthers nearly broadly ovate, 1.2--1.5 mm. Pistil 2.5--3 mm; stigma orbicular, 1.5--2.5 mm in diam., (4--)6-crenate at margin. Fl. Jul--Oct. 2 n = 38*.

* Moist places on hillsides, cliffs; ca. 400 m. N Guangdong (Renhua Xian), Guangxi, ?Guizhou, Hainan (Baoting Xian), Hong Kong, SW Hunan (Xinning Xian).