Stems 50-175 cm. Cauline leaves glabrous or subglabrous above, shortly pubescent beneath especially on the veins, the lower 10-25 x 6-15 cm, elliptical to broadly elliptical, becoming shorter and narrower above. Inflorescence a much-branched panicle. Pedicels 2-3 mm. Flowers 15-25 mm in diameter. Perianth- segments 7-15 x 3-6 mm, elliptical to lanceolate, white outside and greenish inside to greenish-white or yellowish on both surfaces. Capsule sparsely pubescent.