Amelanchier ovalis, commonly known as snowy mespilus[2] (a name which is also attached to the related A. lamarckii) or serviceberry, is a deciduous shrub in the family Rosaceae.
[7] There are two subspecies which can be distinguished by the number of chromosomes: Amelanchier ovalis is a thornless, summer-green shrub with an irregular spreading growth.
[6] Amelanchier ovalis can be found in prealpine and submediterranean climates reaching from colline to sub-alpine zones.
[7] A. ovalis prefers sunny, dry steep slopes, light oak and pine forests and semi-dry grasslands.
[7] Amelanchier ovalis grows in areas which are characterized by moderately dry alternating with moist conditions.
[12] Due to its pioneer features, Amelanchier ovalis is able to establish on nutrient poor and stony substrates, and can stabilize soils.
[15] A. ovalis can be infested by various species of rust fungi (e.g. Gymnosporangium amelanchieris), and consequently serves as a host plant.
A. ovalis is also a host plant of the fire blight pathogen Erwinia amylovora and is highly susceptible to it.
[12][15] Extracts from twigs, leaves and bark can be used for medicinal purposes, due to their richness in biologically active substances, such as polyphenols.