Plants 300-450 mm high. Corm globose, 8-10 mm diam., tunics of brown, soft membranous layers not accumulating. Stem simple or 1-branched, usually with 1 or 2 small cormlets in lowermost leaf axil. Leaves (3)4 or 5, lower 3 linear to subterete, ± 1.5 mm wide, margins and midrib heavily thickened with narrow longitudinal grooves between (often cross-shaped in section with 4 narrow longitudinal grooves), reaching to base or middle of spike, uppermost leaf sheathing stem almost to base of spike, with short free portion. Spike up to 70-flowered; bracts brown or straw-coloured with broad translucent membranous margins, ± 4 mm long, inner ± as long as outer, membranous with 2 dark keels, apically notched. Flowers pale blue-mauve (drying ± white) or deep blue; perianth tube ± 3 mm long; tepals oblong, ± 4 x 1.5 mm. Filaments ± 5 mm long; anthers oblong-linear, ± 3 mm long. Style ± 4 mm long, dividing ± at mouth of tube opposite middle of filaments, branches ± 2.5 mm long, divided for ± 1/3 their length. Capsules oblong, smooth, ± 2.5 mm long, evidently immature. Seeds unknown.
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