Poplars comprise a most bewildering group.
There is wide divergence of opinion and practice as to the limits and names of species. Probably, some of the difficulty in distinguishing native species of Populus is due to the fact that we have not recognized the presence of European or other hybrids in this country. Poplars are amongst the easiest of all trees to propagate and grow. They thrive in almost any soil, although the cottonwood is most at home in lowlands and along streets, at least in the East. Poplars are rapid growers.