Malus × zumi

Malus × zumi (or Malus zumi) is a naturally occurring hybrid species of crabapple in the family Rosaceae, native to Japan, and a garden escapee in the US state of Ohio.^[1] Its parents are Manchurian crab apple Malus mandshurica and Siebold's crabapple Malus sieboldii.^[2] It is used as a salt‑tolerant rootstock for apples, Malus domestica, as it can survive NaCl concentrations up to 0.6%.^[3] A number of ornamental cultivars are available, including 'Golden Hornet' and 'Professor Sprenger'.^[4][5]

Malus × zumi
Flowers and leaves
'Golden Hornet' cultivar laden with fruit
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Malus
Species:	M. × zumi
Binomial name
Malus × zumi (Matsum.) Rehder
Synonyms[1]
Malus toringo var. zumi (Matsum.) H.Hara Pyrus × zumi Matsum.