Plant to 0.5 m high, tufted, solitary; tufts to 30 cm wide at base. Roots fleshy-fibrous. Stems less than 8 cm long, ±touching. Leaves 0.5-1 m long; sheath conduplicate, ±wholly occluded distally; lamina 1-2 cm wide, recurving, ultimately obtuse. Inflorescence shorter than foliage, irregular in outline, uninterrupted; cymules expanded, 1-6-flowered; pedicels to c. 1.5 cm long, evenly rounded. Perianth purple. Sepals elliptic, 5-5.5 mm long, 5-nerved. Petals ovate, 4.5-5 mm long, 3-5-nerved. Filament swelling 0.8-1.2 mm long, bright yellow; anthers 1.5-2 mm long, dark brown. Ovules 2 per locule. Berry 5-12 mm long. Seed 2.5-3.5 mm long; testa minutely alveolate, black, shiny.