More, filiform, 50-150 mm long, less than 1 mm wide, with ribs and grooves hardly visible. Inner bract green, with brown-speckled membranous margins. Flowers 15-25 mm long, sulphur-yellow, often with dark linear-oblong marks in the cup, outer segments with a purple spot on each side at the base. Perianth tube 4-5 mm long; segments 12-20 x 4-5 mm, subacute to subobtuse. Filaments 6-9 mm; anthers 2.5-3 mm, yellow. Style 8-11 mm; stigmas reaching the anther tips. Capsules obovoid.
Cormous geophyte, 4-6 cm, corm with an oblique basal ridge, basal ridge fibrous, stem branching just above ground. Basal leaves 2. Flowers yellow with dark marks in cup, filaments twice as long as anthers and hairy.