Perennial herb, geophyte, 0.05-0.20 m high, dwarfed in dry habitats. Leaves 3 or 4, axillary cormlets usually present, erect, ± 300 x 3-8 mm, ± falcate, canaliculate above, pubescent, margins ciliate, undulate or crisped. Inner spathe glabrous or variously hairy 35-55(75) mm long. Inflorescence solitary. Flowers in shades of blue, less often white or pinkish; tepals 24-34 mm long, outer tepal claws often dark blue to purple, limbs with small yellow nectar guides at bases outlined dark blue. Stamens with filaments 5-10 mm long, united for 1.5-2.0 mm; anthers 5-8 mm long. Ovary spindle-shaped, 11-14 mm long; style branches 9-16 mm long, crests 9-15 mm long. Flowering time July-Sept. Capsules 12-20 mm long. Seeds ± globose, 2.0-2.5 mm diam.