The Northeastern coastal forests are a temperate broadleaf and mixed forests ecoregion of the northeast and middle Atlantic region of the United States. The ecoregion covers an area of 34,630 sq miles (89,691 km2) encompassing the Piedmont and coastal plain of seven states, extending from coastal southwestern Maine, southeastern New Hampshire, eastern Massachusetts, and Rhode Island, southward through Connecticut, New York State, New Jersey, southeast Pennsylvania, Delaware and Maryland.
The Chavez Ravine Arboretum, in Elysian Park, just north of Dodger Stadium, at 1025 Elysian Park Dr, Los Angeles, California, contains more than 100 varieties of trees from around the world, including what are believed to be the oldest and largest Cape Chestnut, Kauri, and Tipu trees in the United States. Admission to the arboretum is free.
The University of Delaware Botanic Gardens are botanical gardens and an arboretum located on the campus of the University of Delaware, in Newark, Delaware, United States. The gardens are open to the public without charge.
The Donald E. Davis Arboretum, in Auburn, Alabama, United States, is a public native plants museum, and botanical arboretum with educational facilities, event spaces, and a conservation program. Its grounds, covering 13.5 acres of Auburn University's campus, include cataloged living collections of associated tree and plant communities representative of Alabama's ecosystems, among which is mixed oak forest, carnivorous bog, and longleaf pine savanna. The living collections include more than 1,000 plant types, including 500 different plant species, with over 3,000 cataloged specimens. The Arboretum contains over a mile (2 km) of interwoven walking trails that meander through various southeastern biotopes.
The Alice Abel Arboretum is a 25 acres arboretum located at 5000 St. Paul Street on the campus of Nebraska Wesleyan University in Lincoln, Nebraska.
The Idaho State Arboretum is an arboretum located across the campus of the Idaho State University, Pocatello, Idaho, United States. It is open to the public daily without charge and includes an organized tree walk.
The Fell Arboretum is an arboretum located across the campus of Illinois State University in Normal, Illinois.
Nichols Arboretum, locally known as the Arb, is an arboretum operated by the Matthaei Botanical Gardens and Nichols Arboretum (MBGNA) at the University of Michigan. Located on the eastern edge of its Central Campus at 1610 Washington Heights in Ann Arbor, Michigan, the Arboretum is a mosaic of University and City properties operated as one unit. The arboretum is open daily from sunrise to sunset with no charge for admission. The Huron River separates a northern section of the arboretum's floodplain woods; the railroad marks the northern border.
Peavy Arboretum is an arboretum operated by Oregon State University and located on Arboretum Road, Corvallis, Oregon. It is open to the public daily without charge.
The Appalachian mixed mesophytic forests is an ecoregion of the temperate broadleaf and mixed forests biome, as defined by the World Wildlife Fund. It consists of mesophytic plants west of the Appalachian Mountains in the Southeastern United States.
The Appalachian–Blue Ridge forests are an ecoregion in the Temperate broadleaf and mixed forests Biome, in the Eastern United States. The ecoregion is located in the central and southern Appalachian Mountains, including the Ridge-and-Valley Appalachians and the Blue Ridge Mountains. It covers an area of about 61,500 square miles (159,000 km2) in: northeast Alabama and Georgia, northwest South Carolina, eastern Tennessee, western North Carolina, Virginia, Maryland, and central West Virginia and Pennsylvania; and small extensions into Kentucky, New Jersey, and New York.
The Museo e Arboreto Carlo Siemoni is a museum and historic arboretum located in Badia Prataglia, Poppi, Province of Arezzo, Tuscany, Italy.
The northeastern interior dry–mesic oak forest is a forest system found in Maine, Vermont, New Hampshire, Massachusetts, Connecticut, Rhode Island, New York, New Jersey, Ohio, Pennsylvania, Maryland, Virginia, and West Virginia. These forests cover large areas at low and middle elevations, typically on flat to gently rolling terrain.