Smith, Gideon F., and Neil R. Crouch. “Crassula ×mortii (Crassulaceae Subfam. Crassuloideae), a New Natural Hybrid between C. perforata and C. rubricaulis From South Africa’s Southern Cape”. Phytotaxa 487, no. 1 (February 22, 2021): 97–102. Accessed December 6, 2025. https://phytotaxa.mapress.com/pt/article/view/phytotaxa.487.1.9.