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A broadleaf evergreen tree that has the most northerly distribution of any broadleaf evergreen tree in North America; among other evergreen plants, only smaller shrubs and conifers persist farther north. Common and widespread in much of its range.
A widely-distributed tree found mostly in floodplains, riparian areas, and swamps, and occasionally found on drier sites; severely threatened by the emerald ash borer.
A large deciduous tree native to eastern North America, with distinctive four-lobed leaves and tulip-like blossoms.
Mid-elevations (1,500-2,800 feet) in the Adirondacks, covered in a more conifer-rich variant of northern hardwood forests.
A hilly, geologically diverse transition between the Berkshire mountains and lower elevations of coastal New England.
A mostly unpopulated, hilly upland region at the northern border of Maine, extending into Quebec and New Brunswick.
These species are usually easy to tell apart if looking at a pure species, but they readily hybridize and form intergrades, and it may not be possible to identify all individuals. Red mulberry mostly occurs in mature bottomland forests whereas white mulberry is more likely as a pioneer species in disturbed habitats.
Black and green ash are sometimes confused where their ranges overlap, but they are usually easily distinguished by several different characteristics. Both are found in poorly-drained, wet habitats, but black ash occupies a later stage of succession whereas green ash is more of a pioneer species.
These two species are occasionally confused where their ranges overlap, but they can be distinguished with skill at any time of year. Northern red oak prefers richer sites and is much more shade tolerant. The two species can hybridize and form intergrades, so it may not be possible to identify all individuals.
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