The flower of Romulea kamisensis grows on a short pedicel, subtended by two unequal bracts. The outer bract envelops the inner one and the stem. The inner bract has colourless, membranous margins.
The magenta to purple tepals are white or violet in the cup at their bases and have dark patches above the throat. Nectar is found in the long, funnel-shaped corolla tube that is from 1,7 cm to 2,2 cm long; longer than the spreading lobes.
The stamens and style are included in the tube, the stigma as tall as the anthers. Pollination is performed at least by the long-tongued fly, Prosoeca peringueyi that targets violet winter flowers of different species in a local, Namaqualand pollination syndrome.
Flowering happens late in winter and early in spring (Grenier, 2019; Le Roux, et al, 2005; iNaturalist).