Robust herb up to 60 cm tall; tuber bright yellow to saffron yellow (rarely whitish) inside, getting bluish exposed to air, ovoid, 3.3-6.5 cm long and 2.3-3.0 (4.3) cm wide, sometimes producing more than one shoot; tunic fibrous. Leaves yellowish green with lighter bases; outer leaves 1 to 5, oblongo-ovate, (4.5-) 6-13 cm long and 0.8-2.0 (-2.4) cm wide, sometimes reflexed, sparcely pubescent or glasbrescent; trichomes on margins and midrib abaxially tufted, on lamina surface 2-branched or rarely tufted, golden brown to whitish; veins unequal, 17 to 28 (to 33); inner leaves 5 to 15, linear, (11-) 17-60 (-95) cm long and 0.8-2.0 cm wide, sometimes reflexed; indumentum like above, with trichomes falling off with age; veins unequal, (12-) 19 to 45. Scapes 4 to 9, 8-45 cm long and 2-3 mm wide, width reducing in steps as pedicels diverge, ciliate in lower half, pubescent above; trichomes tufted, ca. 5-branched, golden; raceme (2-) 4-7-flowered; at least two lowest flowers opposite; bracts subulate, keeled, (5-) 9-24 mm long and 1-2 mm wide, 3-nerved at the lowest flowers, pubescent on midrib abaxially, ciliate on margins; pedicels 0-35 mm long, tomentose; tepals 6, yellow or orange inside, green outside; outer tepals ovate, 8-15 x 4-5 (-6) mm, keeled, pubescent abaxially, irregularly 5- to 7-nerved; inner tepals ovate, obtuse, 8-14 x ca. 5 mm, irregularly 5- to 7-nerved, pubescent abaxially along the midrib; stamens unequal; outer stamens 4-8 mm, inner 4-7 mm long; filaments subulate, 1.5-4.0 mm long; anthers 3-6 mm long, fused apically, yellow; ovary obconical 4-10 mm long and 3-4 mm wide; style 3-4 mm long; stigma pyramidal, 2-3 mm long, with three stripes of papillae, yellow. Capsule turbinate, 4-10 x 3-5 mm, circumscissile. Seeds ovoid, ca. 1.5 mm long 1 mm wide, black; seed coat colliculate with more or less flat papillae.