References

For Petrosedum

Keener, B.R., J.K. England, R. Sewell, B. Finch, G. Todia, W.M. Knapp, J.R. Burkhalter, K. Lybarger, and B. Finzel. 2024. Noteworthy collections from the Alabama flora (U.S.A.). J. Bot Res. Inst. Texas 18(1): 193-2004. 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

Nikulin, V.Y., S.B. Gontcharova, R. Stephenson, and A.A. Gontcharov. 2016. Phylogenetic relationships between Sedum L. and related genera (Crassulaceae) based on ITS rDNA sequence comparisons. Flora 224: 218-229. Google Scholar

Thiede, J., and U. Eggli. 2007. Crassulaceae. In Kubitzki, K., C. Bayer, and P.F. Stevens, eds. 2007. The families and genera of vascular plants. IX. Flowering plants – Eudicots – Berberidopsidales, Buxales, Crossosomatales, Fabales p.p., Geraniales, Gunnerales, Myrtales p.p., Proteales, Saxifragales, Vitales, Zygophyllales, Clusiaceae alliance, Passifloraceae alliance, Dilleniaceae, Huaceae, Picramniaceae, Sabiaceae. Springer, Berlin. 509 pp. Google Scholar