Plants acaulescent, with leaves in a basal rosette, up to 7 cm diam., proliferous from the leaf axils. Leaves about 12, the young erect, tips incurved, the old ascending, somewhat spreading, tips incurved, falcate, curved somewhat laterally and inwards towards the apex, more or less falcate above, about 2 to 8 cm long, 8 to 12 mm broad, about 5 mm thick, ovate to lanceolate, blackish-green; upper surface flat or slightly concave, rough, tubercled with small concolorous tubercles; lower surface 3 angled or round, rough, crowded with large irregularly scattered concolorous tubercles, keeled in the upper third; margins acute, tubercled with tubercles similar to those on the lower surface. Inflorescence about 71 cm tall; peduncle simple, terete, about 2 mm diam., about 43 cm long, bracteate, sterile bracts membranous, ovate, abruptly long acuminate, about 8 mm long, erect, keeled; raceme about 28 cm long, lax, with about 28 spirally arranged flowers and buds, 3 open simultaneously; floral bracts membranous, 5 mm long, deltoid, acute, keeled with greyish-green veins, clasping the pedicels, (equal in length to the pedicels); pedicels 5 mm long, 1.5 mm diam., dark green, erect; perianth greenish, with white keels to the segments, 15 mm long, straight, compressed at base, funnel-shaped, tube more or less 4 mm across, constricted to 3 mm above; segments closely coherent, limb 2 lipped; posterior segments erect, not recurved, not spreading, white with broad green veins; exterior part recurved, spreading, white with pale green veins; stamens 6 of two lengths 7 and 8 mm long, inserted within the perianth tube; ovary 5 mm long, 2 mm diam., green; style 3 mm long, curved, capitate.
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