What, if any, is the difference between a bush and a shrub?

What are some flowering perennials that bloom from...
Answers:    There is no technical difference. One man's bush may be another man's shrub.
Salvia... first timer... proposal?
Shrub is more of an "official" botanical term. If you scrabble botany books in a library catalog, the preferred terminology is shrub.
Is it Ok to put an attachment such...
duplicate just depends on if is is trimmed or not and a shrub is more than 1 plant lined up a bush is solely 1 plant