Malus floribunda has resistance to the apple scab and founded the program to introduce this "VF gene" into cultivated apples. Their work had been progressing with great success. This crabapple species is considered as one of the best crabapples for form and flower and has gained the Royal Horticultural Society's Award of Garden Merit. Malus floribunda Malus floribunda, common name Japanese flowering crabapple, Japanese crab, purple chokeberry, or showy crabapple, originates from Japan and East Asia. It may be a wild species, or a hybrid of "M. sieboldii" x "M. baccata". "Malus floribunda" forms a round-headed, small deciduous tree with narrow leaves
Malus angustifolia Malus angustifolia Malus angustifolia, or southern crabapple, is a species of crabapple native to the eastern and south-central United States from Florida west to eastern Texas and north to New Jersey, Pennsylvania, Illinois and Missouri. "Malus angustifolia" is a tree sometimes attaining a height of 10 meters (33 feet). The trunk can have a diameter up to 25 cm (10 inches). Flowers are pink, with a pleasant scent. The fruits are up to 3 cm (1.2 inches) in diameter, and have an aromatic scent and a pear-like shape. They are astringent and acidic and not palatable when raw, but can