Plants 100-250 mm long. Corm sub-globose, with strongly curved basal teeth bent, and often broken over a rounded base. Leaves basal, filiform, sometimes minutely ciliate on rib margins, 90-250 x 0.5-1 mm, grooves narrow. Bracts greenish or brownish purple, inner with wide, brown, membranous margins and tip. Peduncles reddish brown, subterete. Flowers 22-35 mm long, golden-yellow, frequently with a darker yellow cup and one or more dark veins on each segment, outer segments reddish brown on the backs or with 3-5 dark veins. Perianth tube 3-4 mm; segments 18-27 x 5-7 mm. Filaments 4-5 mm; anthers 3-5 mm, at first lightly joined at the tips, reaching less than halfway up the perianth. Style 7-10 mm; stigmas at or just below the anther tips. Capsules on suberect or curved peduncles.
Cormous geophyte, 5-8 cm, corms rounded at base with coarse, bent teeth. Basal leaves 1-several. Flowers yellow with dark streaks.