Perennial, geophytic herb, 0.3-1.3 m high; stems solitary, erect. Leaves erect, elliptic oblong, 40-110 x 10-60 mm, base truncate, apex obtuse, tip mucronate; midvein and parallel secondary veins pronounced; scabrid along margins. Inflorescences subaxillary, globose, 10-25(-50)-flowered. Corolla reflexed, purple-brown; lobes oblong, margins revolute, 6-12 x 3-5 mm, lower surface glabrous. Staminal column 2.5-3.0 mm. Corona solid, fleshy, scale-like, greenish white, obtriangular, 1.5-4.5 mm high, 2-4 mm broad, contiguous, upper end blunt. Style-stigma-head 1.0-1.5 mm above corona, truncate. Anthers ovate, inflexed on style-stigma-head. Flowering time Nov.-Jan. Follicle ovoid, inflated, 30-90 x 10-20 mm, with several lines of short, recurved spines.
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Perennial herb, 0.3-0.9 m high. Leaves 1-3 times as long as broad; oblong, ovate, elliptic or lanceolate; glabrous. Umbels pedunculate, numerous and racemosely arranged along stem. Flowers brownish.