Plants solitary or gregarious, up to 80 cm high. Roots spreading, uniform, hard, stout, up to 4 mm in diam., white at first becoming orange-red. Rhizome creeping, woody, covered with fibres. Leaves somewhat distichous, young tubular leaf-bases pink; lamina flat, erect often with a twist, firm, somewhat fleshy, linear-lanceolate, up to 40 cm long, 6 mm broad, shortly and sparsely pubescent, striate, midrib prominent below and excentric. Inflorescence erect, simple or with 1-2 ascending basal branches, up to 80 cm high; scape minutely and patently pubescent below, glandular pubescent above when young: bracts small, membranous, apiculate; pedicels ascending in flower, patent-erect in fruit and then up to 18 mm long. Flowers with perianth glabrous, white with yellow maculae, segments 10 mm long; stamens spreading shortly scabrid; ovary glandular-pubescent with 4 ovules per cell. Capsule globose, ca. 6 mm in diam. stipitate, covered with short, glandular tubercles. Seeds grey, verrucose, globose, tetrahedral, 3 mm in diam.
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Perennial herb, 0.45-0.80 m high; acaulescent, with red roots. Leaves somewhat distichous; blade linear, erect often with twist, up to 400 mm long, ± 6 mm wide, shortly and sparsely pubescent, striate. Flowers: inflorescence simple or with 1 or 2 ascending branches, up to 0.8 m high; pedicels patent-erect in fruit, up to 18 mm long; perianth white with yellow spots; Oct. Fruit covered with short glandular tubercles.
Perennial herb, up to 0.8 m high. Roots red, stout, ± 4 mm in diameter, cylindrical. Leaves flat, somewhat distichous. Pedicels erect. Capsule globose. Flowers white.
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