Three words “Tree”, “Small Tree” or “Shrub” are often used in different studies including the floristics. These three words may create confusion to decide the actual number of Trees and Shrubs thus need consideration.
Hello M. C. Imprecise terms also have imprecise definitions. Trees have a single stem that branches at some height above the ground. At maturity, some are bigger than others. Shrubs, on the other hand, have multiple branches arising from the crown at ground level. Some of those may actually reach heights greater than some small trees. How's that for impressionistic?