Leaves linear-oblanceolate, 40--60 × 1.5--2.6 cm, abaxially densely white powdery, margin sparsely serrulate, apex long acuminate. Scape 70--85 cm. Raceme 25--30 cm; bracts 0.7--2.2 cm. Flowers solitary or paired; pedicel 1.7--2 cm, not articulate. Tepals yellow, membranous, ca. 20-veined; outer ones narrowly ovate, ca. 1.7 × 0.4 cm; inner ones linear, ca. 4 × 0.5 cm. Filaments pale yellow, ca. 0.35 cm. Anthers ca. 0.8 cm; basal appendages ca. 1.5 mm, apex acute. Style longer than stamens. Fl. Jun.

* About 1200 m. S Shaanxi (Ningshan Xian).