Stems short. Leaves ±falcate, 13-30 cm long, 3-6 mm wide, black and shining at base, glabrous except papillose margins. Inflorescence several-flowered, subtended by a linear-lanceolate bract 1-5 cm long, on scape 6-16 cm long; pedicels c. 5 mm long, each subtended by a small bract. Perianth 12-15 mm long, yellow, tomentose; lobes 5 mm long, branched-tomentose outside. Stamens uniseriate; filaments dilated at base; anthers c. 2 mm long. Style ±equal in height to stamens. Placentas covered with ovules on lateral and lower sides.