Plants

Has anyone ever wondered where the names of flowers and trees come from. I know sometimes I wonder how people came up with the names, because some names are really weird and hard to say. If we didnt have any plants or trees then our world would look pretty dull and ugly. An also if we didnt have our trees we wouldnt have our oxygen. What would we do if we couldnt breathe anymore. I know im thankful everyday for the plants and trees we have they are what helps keep us alive.