''Sorbus'' × ''pinnatifida''

Sorbus × pinnatifida
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Sorbus
Subgenus:	Sorbus
Binomial name
	Sorbus × pinnatifida; (Sm.) Düll

Sorbus × pinnatifida is a widely cultivated ornamental shrub that is thought to be a form of Sorbus × thuringiaca (Nyman) Schonach.^[1] It is cultivated by grafting.

Sorbus × thuringiaca is the diploid hybrid between S. aucuparia and diploid S. aria. It is rare in the wild, but occurs at scattered sites across much of Europe.^[1]

References

1 2 Chester, M.; Cowan, R.S.; Fay, M.F.; Rich, T.C.G. (2007). Parentage of endemic Sorbus L. (Rosaceae) species in the British Isles: evidence from plastid DNA. Botanical Journal of the Linnean Society. 154(3): 291–304.

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[Chester-1] 1 2 Chester, M.; Cowan, R.S.; Fay, M.F.; Rich, T.C.G. (2007). Parentage of endemic Sorbus L. (Rosaceae) species in the British Isles: evidence from plastid DNA. Botanical Journal of the Linnean Society. 154(3): 291–304.