Plants 70-240 mm long. Corm with a crescent-shaped basal ridge. Stem 20-70 mm, usually shortly extended above-ground. Basal leaves 2, filiform, 60-240 x up to 1 mm, often minutely ciliate on the rib margins, grooves narrow. Bracts largely green, inner with colourless membranous margins which are brown-edged in the upper half. Flowers 20-40 mm long, light bluish-violet with darker violet veins, cup cream with yellow markings, outer segments wine-coloured on the backs. Perianth tube 4-5(-8) mm long; segments 14-28 x 6-10 mm, mostly obtuse. Filaments 6-9 mm, pilose almost to their tips; anthers 4-6 mm long. Style 10-14 mm; stigmas at the anther tips. Capsules subglobose to ellipsoid on suberect peduncles.
Like R. schlechteri but flowers blue-violet with cream-coloured and yellow cup, outer tepals shiny and wine-red on reverse.