References
Messerschmid, T.F.E., J.T. Klein, G. Kadereit, and J.W. Kadereit. 2020. Linnaeus's folly -- phylogeny, evolution and classification of Sedum (Crassulaceae) and Crassulaceae subfamily Sempervivoideae. Taxon 69: 892-926. Google Scholar
Messerschmid, T.F.E., J.T. Klein, G. Kadereit, and J.W. Kadereit. 2020. Linnaeus's folly -- phylogeny, evolution and classification of Sedum (Crassulaceae) and Crassulaceae subfamily Sempervivoideae. Taxon 69: 892-926. Google Scholar