Leaves few, elliptic to oblanceolate, acute or acuminate, cuneate at the base; lamina 50-70 by 7½-13 cm; petiole well-defined, to 40 cm. Inflorescence ascending to 17 cm long when in flower, lengthening in fruit, with 30-40 flowers. Bracts somewhat amplexicaul ovate, c. 5 by 3-8 mm. Perianth segments violet; the tube 5-6 mm long, 4.5-6 mm wide; lobes darker than tube, oblong to ovate, 4-5.5 by 3-4 mm. Anthers sessile, attached in tube or throat, c. 1-1.25 mm long. Style and ovary white, spotted violet, 3.5-7 mm long; stigma 1.5-4 mm ø, obscurely lobed.