Agriscience Foundations Emery Practice Test

The main idea here is growth form: shrubs are woody plants with multiple stems arising from near the base and usually stay relatively low, while trees have a single main trunk and grow taller. Southern Magnolia is typically grown as a tree, with a tall height and a single central trunk, so it isn’t a shrub. The other plants shown are commonly seen as shrubs: littleleaf boxwood forms a dense, multi-stemmed hedge-like bush; butterfly bush grows as a multi-stemmed shrub or small multi-trunk plant; Exbury hybrid azalea is a bushy, multi-stem shrub. So the one that isn’t a shrub is the Southern Magnolia tree.