Amelanchier is one of the first trees to flower in the spring; the fruit ripen asynchronously during the summer.
Photos: (above, A. canadensis) R. Presgrave; (right) M. Ferguson; both © 2000 Royal Ontario Museum; (below, Amelanchier sp. SE Wyoming) © 2001 T. A. Dickinson
Amelanchier is also one of the genera in the Maloideae in which apomixis, hybridization, and polyploidy have have made for complex patterns of variation that are only beginning to be resolved; some of these issues are described in Boxes 6B and 6C (pp. 120-121) in Judd et al. 1999.
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