Disa roseovittata flower

The flowers of Disa roseovittata grow in a short, cylindrical spike. From 30 to 50 flowers are 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. The lateral sepals spread below the lateral petals, oblong to ovate in shape with irregular margins and tapering tips.

The lateral petals are erect on either side of the dorsal sepal (as often in disas), but then turn outwards abruptly and angled, nearly halfway up their length. The petals continue horizontally to dark, upwardly skewed tips. The whitish, thickly fleshy lip, the third petal in the centre, is narrow, protruding forward from the flower centre, just below the small flower column.

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 (iNaturalist; iSpot; www.orchidspecies.com).