The genus Carruanthus, which consists of two species, is found in the Eastern and Western Cape Provinces in South Africa. C ringens is characterized by heavily toothed leaves, like those of Faucaria; however, they are distinguishable by their stalked fruit. The leaves of C. peersi are much less toothed. Both plants produce bright yellow flowers in the spring. In their native ecosystems, C. ringens grows in full sun while C. peersi prefers shade. Both are easily propagated by seed and cutting.