Raceme 3-5-flowered (occasionally only one);

flowers rather distant, bracteolate on long slender pedicels; perianth ½ inch diameter;

sepals dark purple-brown edged with a bright green line,
a yellow central stripe and broad white exterior margins,
sub-ovate-acuminate, much concave, dorsal one largest,
the two laterals with a long mucro;

petals light pink, sometimes white, elliptic-oblong, obtuse, broader than sepals; lip the smallest.