Plants acaulescent, about 7 cm high, about 3 mm diam., purplish green in the wild, becoming green in cultivation. Leaves about 14, the young erect, straight, the old ascending, little spreading, about 7 cm long, about 7 mm broad at the base, up to 2.5 mm thick, narrowly lanceolate, with a sharp reddish point; upper surface flat or lightly channelled, smooth; lower surface rounded, with a single row of rounded white tubercles arranged parallel to the margins, not pellucid; keel 1, centrally positioned, tubercled; margins acute with 0.75 mm long pellucid, cuspidate teeth; end-awn 1.5 mm long. Inflorescence about 34 cm tall; peduncle about 24 cm long, simple terete, about 2 mm diam., bracteate; sterile bracts membranous, ovate, becoming acuminate, about 6 mm long, erect, keeled; raceme about 10 cm long, lax, with about 12 spirally arranged flowers and buds, 1 to 2 open simultaneously; floral bracts membranous, 3 mm long, deltoid, acute, keeled with reddish veins, clasping the pedicels, (shorter than the pedicels); pedicels 5 mm long, green, 1 mm diam., erect; perianth with green keels to the segments, 13 mm long, compressed at base, curved, funnel-shaped, tube more or less 3 mm across, constricted to 2 mm above; segments free to the base, limb 2 lipped; posterior segments with lobes recurved, spreading, white with fine green veins; stamens 6 of two lengths 6 and 7 mm long, inserted within the perianth tube; ovary 3 mm long, 2 mm diam., green; style 2 mm long, white, curved, capitate.
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Acaulescent succulent. Leaves erect, subulate, dark green to purple with small, white spines. Flowers white.