Over time, different botanists have held different views on the affinities of the genus "Roridula". For a time, the genus "Roridula" was also assigned to the family Byblidaceae. The seeds of "Roridula dentata" germinate shortly after a fire has destroyed the vegetation. Carl Linnaeus described "Roridula" in 1764. Therefore, "Roridula" species do not directly benefit from the insects they catch. Both "Drosera" and "Roridula" trap large numbers of various flying insects. Roridula dentata is a protocarnivorous plant native to the Western Cape province of South Africa. "Roridula" has a more complex relationship with its prey. "Roridula" shares its habitat with several "Drosera" species. In 1912, Johannes Gottfried Hallier regarded "Roridula" as a specialized member of the Clethraceae.