Robust plant up to 50cm. Leaves cauline, narrowly spear-shaped, barred and spotted with red basally. Inflorescence dense, 15-35 flowered: Bracts prominent, overtopping and partially obscuring the flowers. Flowers horizontal, sepals mostly green suffused with purple and white on the inside, dorsal sepal with dark veins, petals purplish, lip white with a purple stripe or blotch. Spur almost hanging, sharply decurved, notched and slightly club-shaped, 5mm long. Lip spear- shaped to narrowly oblong, 8-11mm long.