Haworthiopsis viscosa (L.) Gildenh. & Klopper

Leafy stem erect (to ascending), 7-20 cm tall, 14-65 mm diam., proliferous from the base and forming clumps. Leaves regular or spirally trifarious, imbricated, up to 43 mm long, 12-19 mm broad, and up to 7 mm thick at the middle, ovate-lanceolate, ovate elliptic, or acute-acuminate, cuspidate, straight or recurved, the sheathing leaf base 3-8 mm long on the side opposite to the lamia; upper surface ± concave-triangular below, or flat concave, smooth or minutely scabrous, reddish-brown, olive to dark green; lower surface rounded, triangular near the tip, minutely scabrous or smooth, with about 6-14 indistinct reticulate lines: margins acute below, ± rounded above, smooth or lightly scabrous, horny. Inflorescence about 30 cm tall; peduncle about 20 cm long, simple, terete, about 1.5 mm diam., bracteate; sterile bracts membranous, ovate, abruptly long acuminate, about 6 mm long, erect, keeled; raceme about 10 cm long, lax, with about 18 spirally arranged flowers and buds, 1 to 2 open simultaneously; floral bracts membranous, about 3.5 mm long, deltoid, acute, keeled with reddish-brown veins, clasping the pedicels, (shorter than the pedicels); pedicels about 4.5 mm long, 0.5 mm diam., green, erect; perianth white, with grey or green keels to the segments, about 17 mm long, ± curved, compressed at base, funnel-shaped, tube more or less 4 mm across, hardly constricted above; segments not free to the base; limb 2 lipped; posterior segments recurved, spreading, white with dark green veins; exterior part recurved, spreading, white with greenish-brown veins, replicate; stamens 6 of two lengths 6 and 7 mm long, inserted within the perianth tube; ovary 2 mm long, 1.5 mm diam., green; style 1.5 mm long, straight, capitate.