Rootstock producing a tuber. Tuber 35-45 mm diam., slightly broader than high. Stem annual, ±300 mm tall and 1.5 mm thick, minutely pubescent in upper portion, unbranched, internodes 10-20 mm long. Leaves scale-1ike at first, upper ones linear, up to 120 x 5 mm, with midrib prominent down lower surface. Flowers solitary, extra-axillary; pedicel ±7.5 mm long, thinly puberulous. Sepals linear, acuminate, up to about 10 mm long. Corolla up to about 65 mm long, flat-topped, 5-angled in bud; tube ±7.5 mm long, with inflated base ±7 mm diam., narrowed to 3.5 mm and then expanded to 7.5 mm at throat, pale green, with purplish brown mottling outside, inside inflation white at base, purple-ribbed above, with long purple hairs within throat and on base of lobes; lobes united at tips into a somewhat cage-like structure, 17 mm long, 6 mm broad near apex, becoming strongly replicate and keeled down face, slightly twisted at middle, with long, somewhat clavate hairs towards tips, with inner face pale green near base, transversely white-banded, followed by dark purple and green in upper half. Corona with outer lobes bifid, suberect, 1.5 mm long, with lobules 1 mm long, with few long radiating white hairs near tips; confluent at base with inner lobes; inner lobes, incumbent-erect, 4 mm long.
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Perennial herb, up to 300 mm tall. Leaves linear. Corolla up to 65 mm long, lobes shorter than tube, flat-topped, with long clavate-vibratile hairs. Flowers pale green with purplish brown mottling; lobes inside pale green near base, transversely white-banded, followed by dark purple and green in upper half.
A herb. It has a tuberous root. This is 3-4 cm across. It produces annual stems 30 cm tall. They have small hairs. The leaves are scale like and then the upper ones are narrow and 12 cm long by 0.5 cm wide. The flowers occur singly near the axils of the leaves.
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