Complex sentence: The Downy Serviceberry "(Amelanchier arborea)" is native to eastern North America from the Gulf Coast north to Thunder Bay in Ontario, and is usually an understory tree but occasionally reaches into the forest canopy.
Split into simpler sentences: The Downy Serviceberry ("Amelanchier arborea") is native to eastern North America from the Gulf Coast north to Thunder Bay in Ontario. It is usually an understory tree but occasionally reaches into the forest canopy.