Perennial herb. Tuber up to 0,15-0,2 m diam., depressed from above. Stems 1-several, 70-150 mm long, erect or spreading, someÂwhat branched above, variably pubescent with short, rather coarse, spreading hairs. Leaves linear-lanceolate to ovate or elliptic, 5-30 x 3-10 mm, cuneately narrowed into a short petiole, often somewhat folded upwards and undulate, sometimes glabrous above. Flowers 2-6 together, very variable in size; pedicels up to 10 mm long. Sepals lanceolate, up to 5 mm long, pubescent. Corolla 25-50 mm diam.; tube campanulate, 6-10 mm long; lobes 10-25 mm long, pubescent or glabrescent externally, mainly glabrous within; tube white to yellowish within, with purple-brown warty spots, becoming dark purple-brown to nearly black on lobes. Corona shortly campanulate at base, forming 5 pockets with V-shaped outer margin, with or without minute hairs within, confluent laterally with base of inner lobes; inner lobes incumbent on anthers but not exceeding them. Pollinia subpyriform, attached by short caudicles to carrier. Follicles in pairs or solitary, fusiform, up to 100 mm long, pubescent.
