Riocreuxia aberrans: the relatively short campanulate corolla-tube and usually free lobes makes this species readily identifiable. Restricted to quartzite ridges in the Ermelo and Belfast districts of Mpumalanga. It has a large attractive flowers and is the only species that tends to rather form a bush than being a climber. Flowers mainly in November to January at altitude 1900–2100 m.

Left: Illustration of Riocreuxia aberrans

Riocreuxia flanaganii var. flanaganii : was named after H.G. Flanagan, a farmer from the Eastern Cape, who made numerous collections and had a strong interest in Botany. This species is frequently found in grassland among boulders on the coast becoming twining inland amongst tall grass and low shrubs in open veld. It is found from East London and Komga to the southern Transkei coast and flowers from November to February at altitude 30–300 m.

Riocreuxia polyantha : was named after the famous William Burchell, a naturalist and explorer of the Cape in 1810-1814. It is also a widespread species from Limpopo, Mpumalanga, Gauteng, Northwest, Northern Cape, Free State, Lesotho, KwaZulu-Natal and rarer in KwaZulu-Natal and the Eastern Cape Provinces. It is distinguished from the closely related R. torulosa by not being as hairy and by the absence of the basal bulge of the corolla. Flower December to May. Naturally found on forest margins (montane and riverine forests), wooded savannas and thickets. Altitude 0–1800 m.

Riocreuxia woodii : named after Medley Wood, the founder of the KwaZulu-Natal herbarium and known from a single location at Inanda in KwaZulu-Natal where almost all of the natural vegetation has been transformed. It is closely related to R. flanaganii from which it is distinguished by its 25-80 mm long peduncles with clusters of 8-25 flowers and in having different distributions. Flowers in June.