Perennial herbs without distinct stem. Leaves 6-12 cm long and 2-5 mm wide, blades persistent, V-shaped with prominent keel, falcate with an acuminate tip, moderately viscid, margins and midrib distinctly setose, dry leaves folded at midvein and partly spirally twisted. Flowers solitary on 10-15-cm-long peduncle with dark glands. Tepals 15-20 mm long, white, the outer cuspidate and with glands on the outside, the inner obtuse and glabrous. Stamens six, filaments short (about 1-2 mm), anthers 9-10 mm long. Style 3-4 mm long and clearly shorter than stigma (5-6 mm). Ovary 3 mm long and 4 mm in diameter, almost globose, densely covered with dark glands.
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