Petrosedum
Petrosedum reflexum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Saxifragales
Family:	Crassulaceae
Subfamily:	Sempervivoideae
Tribe:	Semperviveae
Genus:	Petrosedum Grulich
Type species
Petrosedum reflexum (L.) Grulich[1]

Petrosedum is a genus of the succulent family Crassulaceae (stonecrop family).

Taxonomy

Petrosedum is a genus in the family Crassulaceae, subfamily Sempervivoideae, tribe Semperviveae, together with two other genera. It was segregated from the very large cosmopolitan and polyphyletic genus, Sedum, where it was variously considered a series (Rupestria). It was originally described with eleven species.^[1]

Species

The following species are recognised in the genus Petrosedum:^[2]

• Petrosedum × affomarcoi (L.Gallo & Afferni) Afferni
• Petrosedum albescens Afferni
• Petrosedum amplexicaule (DC.) Velayos
• Petrosedum × bellardii L.Gallo
• Petrosedum × brevierei (Chass. ex L.Gallo) Afferni
• Petrosedum dianium (O.Bolòs) Afferni
• Petrosedum × elaverinum (L.Gallo & J.-M.Tison) L.Gallo
• Petrosedum erectum ('t Hart) Grulich
• Petrosedum × estrelae Gideon F.Sm. & R.Stephenson
• Petrosedum forsterianum (Sm.) Grulich
• Petrosedum × henkii (L.Gallo) Afferni
• Petrosedum × hommelsii ('t Hart) Niederle
• Petrosedum × lorenzoi (Niederle) Niederle
• Petrosedum × luteolum (Chaboiss.) Grulich
• Petrosedum montanum (Songeon & E.P.Perrier) Grulich
• Petrosedum monteferraticum Niederle
• Petrosedum ochroleucum (Chaix) Niederle
• Petrosedum orientale ('t Hart) Grulich
• Petrosedum × pascalianum (L.Gallo) Afferni
• Petrosedum pruinatum (Link ex Brot.) Grulich
• Petrosedum rupestre (L.) P.V.Heath
• Petrosedum sediforme (Jacq.) Grulich
• Petrosedum subulatum (C.A.Mey.) Afferni
• Petrosedum tenuifolium (Sm.) Grulich