Disa roseovittata flower

The flowers of Disa roseovittata grow in a short, cylindrical spike; from 30 to 50 flowers may be borne per inflorescence.

The dorsal sepal is not hood-shaped in this species, only shallowly concave. It tapers to an acute tip, somewhat triangular and rounded in the photo. All three sepals of this flower are comparatively large, but matched by the lateral petals that are large and conspicuously shaped.

At the base these petals stand erectly on either side of the dorsal sepal (as often seen in disas), but then turn outwards in abrupt, angular manner, nearly halfway up their length. The petals continue horizontally to dark, upwardly skewed tips.

The upper three tepals, i.e. the dorsal sepal and the lateral petals, all have dark lines down the centre, narrow and longitudinal, absent from the lower tepals.

The lateral sepals spread below the lateral petals, oblong to ovate in shape with irregular margins and tapering tips. The whitish, thickly fleshy lip in the centre below is narrow, protruding forward from the flower centre, just below the small flower column (iSpot; www.orchidspecies.com).