Malus toringoides (Rehd.) Hughes

Malus toringoides is a crabapple species in the family Rosaceae, with the common name cut-leaf crabapple.

The tree is endemic to mountain ranges of China, located within Shaanxi, Gansu, Ningxia, Qinghai and Sichuan Provinces.

Malus toringoides is a wild crabapple tree, and is sometimes used as a root stock in apple hybridizing. It is a naturally occurring hybrid species with multiple ploidy levels.^[1]

References

• Tang, L.; Li, J.; Tan, S.; Li, M.-X.; Ma, X.; Zhou, Z.-Q. (2014). "New insights into the hybrid origin of Malus toringoides and its close relatives based on a single-copy nuclear gene SbeI and three chloroplast fragments". Journal of Systematics and Evolution. 52 (4): 477–486. doi:10.1111/jse.12079. S2CID 82625023.