Flowers: about 10-30 in a loose, narrow, elongated cluster, the flower stalks rather slender, 1-2.5 mm long. Sepals brownish-purple, narrowly oblong-lanceolate, 8-10 mm long, 3-nerved, the side pair extending under the base of the lip and with the column forming a blunt bulge about 1 mm long. Side petals brownish, slightly shorter than the sepals, mostly 3-nerved, the lip white, usually strongly spotted with wine-red (or white), with 2 prominent, almost erect side lobes below midlength, the main central lobe obovate, irregularly wavy-edged, up to 5 mm broad. Reproductive column thick and stout, 3.5-4.5 mm long.