Crouch, N.R., Walters, M., Lötter, M. and Smith, G.F. 2025. A new cliff-dwelling species of Crassula (Crassulaceae: Crassuloideae) from the Mpumalanga Escarpment, Northern Drakensberg, South Africa. Phytotaxa. 714, 1 (Aug. 2025), 69–78. DOI:https://doi.org/10.11646/phytotaxa.714.1.4.