Stem short, up to 8 cm long and about 1 cm in diameter, rarely branched. Leaves about 5-10 cm long and 3-5 mm wide; blades V-shaped, persistent over some time with midvein on lower surface prominent, midvein and margins thickened and serrate, some glandular spots on upper surface; leaf sheaths extensively splitting into long fibres (> 1 cm). Flowers solitary on 6-12-cm-long peduncle. Tepals 15-20 mm long, dark violet, the outer with glands outside, the inner glabrous, Stamens six, filaments short, anthers 7-8 mm long. Style and stigma of about equal sizes (3.5-4.0 mm each). Ovary 3-4 mm long and 2-3 mm in diameter, oblong, densely covered with dark glandular trichomes; peduncle and outer tepals almost eglandular.
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