Stout, erect, entirely glabrous shrub up to about 180 cm (6 ft) or so. Branches ascending. Leaves 3-nate, 6-12 mm long, suberect to spreading, mostly incurved, linear-subterete, acute or mucronate, sulcate, glaucous, the floral often larger and subpetaloid. Flowers umbellate, at length cernuous; peduncles mostly 8, rarely up to 24, mm long; bracts median, the lowest subbasal, laxly spreading, ovate, scarious, coloured. Sepals about 6 mm long, or 2/3 of the corolla more or less, elliptic, subovate to orbicular, keel-tipped, scarious, coloured. Corolla 8-12 mm long, subglobose-urceolate with a rather long neck, very thick in texture, variable in colour, dull red and more or less livid-purple about the throat and lobes or pallid with green lobes or entirely green; lobes short, 1/5-1/4 the length of the tube, spreading. Filaments broad, rigid, strongly bent below the anther, 3-5 mm long, about as long as the capsule so that the anther-crests rest upon its apex; anthers included, 2-2.7 mm long, lateral, oblong-cuneate, acute or subacute, appendiculate; pore 1/2 the length of the cell; crests 1/3-2/3 the length of the cell, spreading, broad-ovate or semiorbicular, affixed at the base of the cell and adnate to the upper part of the filament or partially free at the apex, finely crenulate or incised. Ovary globose; style included; stigma small, subsimple.
Erect shrub to 2 m. Flowers large, calycine, broadly urn-shaped, dark purple with brown tips and red calyx or pale green with pink calyx.