The northeastern U.S.A. and adjacent Canada is a region rich in botanical diversity. About 5300 species and 180 families of vascular plants inhabit this area, accounting for ca. 25% of all species and ca. 75% of all families of vascular plants in North America north of Mexico.
For more information please visit:
https://sweetgum.nybg.org/science/projects/northeastflora/
