Disa macrostachya Bolus

Plants slender, 300 mm tall; the lower 4-8 leaves lorate, acute, erect, conduplicate, up to 130 x 20 mm, remaining leaves mostly sheathing. Inflorescences lax with several flowers, up to 200 mm long; bracts as tall as the flowers, probably dry. Flowers: Median sepal erect, narrowly oblong, acute, galea 8 mm tall; spur somewhat inflated, obtuse to retuse, 6-8 mm long and about 2 mm in diameter, straight; lateral sepals reflexed, oblong, obtuse, c. 7 mm long. Petals obliquely narrowly ovate, very acute, 6 mm long, erect. Lip pendent, lorate, obtuse, 6 mm long. Anther 1.5 mm long; stigma 2 mm tall; rostellum erect, tall.