Plants 300-700 mm high, forming dense tufts. Corm deep-seated, obliquely subglobose, 20-30 mm diam.; tunics of moderately coarse fibres forming thickly matted layers, extending in a thick, fibrous collar. Stem simple or with up to 2 suberect branches. Leaves 6 to 8, wiry, terete to elliptic in section, 600-700 x 1-3 mm, acuminate, striate with translucent veins and margins, often longer than stem, cauline leaves bract-like, often dry. Spike erect, 2-ranked, rather lax, 4-to 12-flowered; bracts green, leathery becoming membranous and dry above, margins membranous, brown and speckled dark brown at tips, 5-8 mm long, outer acuminate or ± 3-toothed with median tooth largest, inner bifid. Flowers zygomorphic, bilabiate, sometimes inverted, bright ruby-red or purple, lower tepals with white median patch, unscented; perianth tube obliquely funnel-shaped, 16-20 mm long with basal tubular portion ± 5 mm long, widening obliquely to ± 8 mm diam.; tepals unequal, dorsal largest, suberect, hooded, subrotund, 9-12 x 8-10 mm, others oblong to obovate, obtuse, 7-9 x 6-9 mm, inner wider than outer, lower 3 recurved, without calluses. Filaments unilateral, arcuate, 12-15 mm long, shortly exserted; anthers 4-6 mm long, violet; pollen cream. Style (18-)20-25 mm long, dividing opposite middle of anthers, branches 1.5-2.0 mm long. Capsules subglobose, 5-10 mm long.
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Cormous geophyte, 400-600 mm tall. Leaves wiry, terete or subterete. Flowers several, in a secund spike, bilabiate with a hooded dorsal tepal, pink to purple with dark veins, perianth tube 16-20 mm, funnel-shaped, exceeding the tepals.