Rootstock producing a tuber. Tuber ±45 mm diam., ±30 mm high. Stem annual, slender, 0,2-0,45 m tall, unbranched, with internodes 30-50 mm long, puberulous with reflexed hairs. Leaves spreading, linear, tapering to both ends, sessile or subsessile, those from middle portion of stem 120-140 x 7-8 mm, thinly puberulous, with midrib prominent below. Flowers solitary, extra-axillary, from upper nodes. Sepals linear-lanceolate, ±6 mm long. Corolla ±120 mm long, glabrous except for long purple hairs within throat and white hairs on base of lobes, mainly reddish-brown of different intensity and pattern; tube about 70 mm long, with small cup-shaped base, inflated above, then gradually contracted to 4 mm and thence broadening to 15-17 mm diam. at throat; lobes with margin replicate near base with inner portion nearly meeting over throat, spirally twisted in bud, the lower 35 mm becoming free and more or less straight with apical 10-15 mm remaining twisted and fused. Corona with outer lob
