A tree is a woody plant at least 16' tall at full height with a single trunk.

A shrub is a multi-stemmed woody plant that is less than 16' tall at full height.

Environmental and physiological conditions influence the shape and appearance of plants in the wild...

Tree and Shrub Identification Tips:
1. Leaf Shape
2. Toothed or Untoothed edge

3. Compound (2+ leaflets joined to twig by 1 stem)

or Simple leaf (whole leaf joined to twig by 1 stem)

4. Opposite or Not Opposite leaf arrangement on twig
5. Seeds, Cones, Fruits, Flowers
6. Bark Color and Texture
7. Round, Narrow, Pyramidal, or Broad tree appearance