Author:
Qjure
Book:
Qjurious
Type:
Info
Chapter:
3-662.14.00
Sempervivoideae
Botany
Roots: tuberous or thickened rhizomes.
Leaves flat, dentate.
Flowers: five-merous; petals 5, free.
Taxconomy
Hylotelephium-clade: 5 genera Hylotelephium, Orostachys, Meterostachys and Sinocrassula, also remains uncertain. In all phylogenies Hylotelephium and Rhodiola clades formed unresolved polytomy. It could not be ruled out that these clades have common ancestry but it is likely that their divergence was fast and could not be traced with the markers applied.
Molecular data fully confirmed the distinctness of Hylotelephium, Orostachys, Rhodiola, Phedimus and Aizopsis from Sedum where they were formerly classified.
Literature
Gontcharova, Svetlana & others; Phylogenetic relationships among members of the subfamily Sedoideae (Crassulaceae) inferred from the ITS region sequences of nuclear rDNA; Russian Journal of Genetics, 42 (6): 654–661; 2006; doi:10.1134/S102279540606010X.
Gontcharova, Svetlana & others; Molecular Phylogenetics of Crassulaceae; Genes, Genomes and Genomics, 1 (1), 40–46; 2007.
Gontcharova, S. B. & Gontcharov, A. A.; Molecular phylogeny and systematics of flowering plants of the family Crassulaceae DC; Molecular Biology, 43 (5): 794–803; 2009; doi:10.1134/S0026893309050112.
Mort, Mark E & others; Phylogeny and evolution of Crassulaceae: Past, present, and future; Biodiversity & Ecology, 3: 69–86; 2010.