Plant 8-35 cm tall. Basal leaf 1; lamina terete, up to 1.5 mm diam. Inflorescence raceme-like, unbranched or rarely branched; flowers paired, the pedicels connate basally; bracteoles opaque, black in centre, the veins obscure abaxially, the margins very narrow, inconspicuous, membranous, blackish; upper bracteole obtuse, acute or acuminate, reaching to c. ¼ of flower. Flowers 8.5-9 mm long, black or brownish black. Sepals ½ or slightly more of petal length. Stamens unequal, 1 slightly longer or all unequal; anthers not versatile, borne slightly below petal tips, 1.3-1.7 mm long. Style at anthesis reaching to middle of uppermost anther.