The genus Pseudoselago has 28 species and is endemic to the south-western Cape. Pseudoselago differs from Selago as follows: Selago seeds are tapered on both ends, whereas in Pseudoselago seed is compressed at only one end. Pseudoselago has a yellow/orange patch inside the flower which is not present in Selago. These are just two differences among others which can be observed. The genus Selago, with 150 Selago species in Africa, comprises mainly herbs and shrubs and its name is derived from the Greek sel- meaning sight and jach meaning salutary, referring to its supposed medicinal properties. The snapdragon family is well-known for its ornamentals, such as the snapdragons and veronicas, as well as its medicinal plants, such as the foxgloves, the Digitalis species.

Pseudoselago gracilis is a South African endemic herbaceous perennial found in the Northern Cape and Western Cape Provinces. It grows up to 75cm tall on rocky slopes and flowers are typically white and appear from September to December.