Premise: Amelanchier ( ), also known as shadbush, shadwood or shadblow, serviceberry or sarvisberry, or just sarvis, juneberry, saskatoon, sugarplum or wild-plum, and chuckley pear is a genus of about 20 species of deciduous-leaved shrubs and small trees in the Rose family (Rosaceae).
Hypothesis: Amelanchier is an evergreen bush.