The saskatoon, saskatoon berry, serviceberry, sarvisberry or juneberry is a shrub native to North America from Alaska across most of western Canada and in the western and north central United States. The Saskatoon Berry is also know as the "pigeon berry". It grows from sea level in the north of the range, up to 2,600 metres (8,530 ft) altitude in California and 3,400 metres (11,200 ft) in the Rocky Mountains.
It is a deciduous shrub or small tree that can grow to 1–8 m (rarely to 10 m) in height. Its growth spans form from suckering and forming colonies to clumped. The leaves are oval to nearly circular, 2–5 cm long and 1–4.5 cm broad, with margins dentate mostly above the middle and a 0.5–2 cm petiole. The flowers are white, about 2–3 cm across; they appear on racemes of 3–20 together in early spring while the new leaves are still expanding. The fruit is a small purple pome 5–15 mm diameter, ripening in early summer