Disa uncinata, a back view

Seen from behind here, the Disa uncinata flower shows the short spur at the back of its dorsal sepal. The spur is constricted at its base, curved and bulging at its tip. It is green in colour, borne horizontally and becomes 2 mm to 4 mm long. Uncina means hook or barb in Latin, the specific name referring to the spur that is curved and swollen at its tip.

A bract sheathes the base of the ovary on the stem. The dorsal sepal covers the lateral petals, as well as the column where the pollinia and stigma are situated.

There is no “eye-spot” marking on the side of the median sepal here, ruling out the possibility that this might be D. ocellata, although the plants of the photos shown in this Album, photographed in Bainskloof, appear borderline between D. uncinata and D. ocellata (Liltved and Johnson, 2012; Vlok and Schutte-Vlok, 2010; iNaturalist; iSpot).