Malus sylvestris found that current populations of "M. pumila" are more closely related to "M. sylvestris" than to "M. sieversii". However, in more pure strains of "M. pumila" the "M. sieversii" ancestry still predominates. The flowers are hermaphrodite and are pollinated by insects. Its leaves are food of the caterpillars of the twin-spotted sphinx ("Smerinthus jamaicensis") and possibly the hawthorn moth ("Scythropia crataegella"). Malus sylvestris Malus sylvestris, the European crab apple, is a species of the genus "Malus", native to Europe. Its scientific name means "forest apple" and the truly wild tree has thorns. Wild apple has an expanded crown and often
Malus transitoria Society's Award of Garden Merit. It is also used as rootstock for other apples. Malus transitoria Malus transitoria, the cut-leaf crabapple, is a species of flowering plant in the crabapple genus "Malus" of the family Rosaceae. It is native to China. The Latin "transitoria" means "short-lived". The name "cut-leaf" refers to the shape of the leaves. "Malus transitoria" is a deciduous tree growing to tall by wide. The deeply divided leaves turn yellow in autumn. It produces abundant white flowers, and small yellow fruits 8 mm in diameter. Varieties include: "Malus transitoria" is cultivated as an ornamental tree, for its