Plants 100-200(-300) mm high. Corm globose, ± 15 mm diam., tunics of fine pale closely matted fibres. Stem simple or 1-or 2-branched from base. Leaves 7 to 9, ± basal, ± 2/3 as long as spike, lanceolate(-oblong), 9-12 mm wide, abruptly expanded adaxially above sheath, obliquely apiculate, closely veined with ± prominent central vein. Spike 1-or 2(3)-flowered, weakly flexuose, flowers spirally arranged; bracts dry, crinkled, translucent with brown streaks, lateral margins fimbriate, 15-20 mm long, distally drawn into long tapering cusps, outer with 3 prominent veins, 3-cuspidate, inner with 2 prominent veins and 2-cuspidate. Flowers actinomorphic, bright yellow, tepals each with dark maroon-purple, heart-shaped mark with central yellow streak in lower 1/3, unscented; perianth tube funnel-shaped, 6-7 mm long, narrow basal part ± 2.5 mm long; tepals subequal, ± oblong, 27-35 x 8-10 mm. Stamens symmetrically arranged; filaments erect, 6-7 mm long; anthers linear, diverging, contiguous below, 9.5-11.0 mm long, pale yellow. Ovary globose, ± 2.5 mm long; style dividing opposite the lower 1/3 of anthers, branches filiform, 4.5-5.0 mm long, extending outward between upper 1/3 of anthers. Capsules ± globose, shortly stipitate on stalks ± 1 mm long, 6-9 x 5-6 mm, not splitting at apex, walls eventually fragmenting by horizontal cracks. Seeds reddish brown, up to 8 per locule, ± 2 mm diam.
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Cormous geophyte, 10-20 cm. Leaves broad, falcate. Flowers actinomorphic, stamens and style central, yellow with black centre.