Ophiopogon dielsianus Handel-Mazzetti.

Stem elongate, 3--4 mm thick, covered with grayish sheaths, proximally with some aerial roots. Leaves in distant tufts, 5--8 per tuft; petiole 1.5--5(--10) cm; leaf blade abaxially glaucous, narrowly oblanceolate to linear-lanceolate, 5--20(--30) cm × 4--8 mm, 5--7-veined. Scape arising from an apical leaf axil. Inflorescence a raceme, 4--10-flowered; bracts lanceolate, basal one 6--8 mm. Flowers solitary; pedicel 4--6 mm, articulate proximally. Tepals bluish, ovate, ca. 5 × 2.5--3 mm. Filaments ca. 0.5 mm; anthers ca. 2 mm. Style ca. 2 × as long as anthers, slender. Fl. Jun. 2 n = 36*.

* Broad-leaved forests, scrub forests, streamsides, moist and shady places, cliffs; 700--1800 m. N Guizhou, S Sichuan.