Sempervivoideae: Difference between revisions

The phylogenetic relatpionships of the Petrosedum clade are not fully resolved, and hence is unplaced, due to discordance in molecular marker analyses. In [[plastid]] phylogeny, it is one of the successive sister clades to the remainder of Sempervivoideae, without Telephium. But in [[Internal transcribed spacer]] (ITS) phylogeny Petrosedum it is sister to Aeonium, with Sempervivum/Jovibarba closest to Sedeae. Previously it had been placed within Sempervivum/Jovibarba. All species of ''Sedum'' series ''Rupestria'' <small>[[A.Berger]]</small> belong in this clade. This series has been elevated to genus rank as ''Petrosedum'', but ''Sedum'' series ''Nana'' also belongs to this segregated genus, or is at least sister to ''Petrosedum'' in this clade.{{sfn|Messerschmid et al|2020}}