Conophytum verrucosum (Gamoep)

The Ophthalmophyllum section is such a nightmare to sort out that it is a relief to find one species that is easy to recognise. The brown warty leaves and white flowers make identification simple; or does it? There are several populations in the Gamoep/Stofvlei area that are very obviously this taxon. However, way to the east on the farm with the lovely name Sidi Barani there are similar-looking plants that probably should be regarded as rough-topped C. friedrichiae.