Colorado USA Fall Foliage | credit: NPS |
During the Autumn season, trees release a chemical called phytochrome, which slows down chlorophyll production and allows the tree to go dormant. As green chlorophyll recedes from the leaves, other colors begin to show.
Leaf pigment is also influenced by the amount and acidity of tree sap. Strongly acidic sap tends to result in reds and other bright colors, while less acidic sap produces more yellows or softer tones.
Depending on locations, travelers can expect to see a variety of foliage colors during Autumn.
Along the Atlantic Coast of North America, brightly colored fall foliage can usually be found in places such as the Canadian Maritimes, the New England states, Upstate New York, Pennsylvania, Ohio, and Maryland.
Fall Foliage Colors
Yellows
Ash, White
Basswood
Beech
Birch, Rive
Birch, Sweet
Buckeye, Ohio
Coffeetree, Kentucky
Cottonwood, Eastern
Elder, Box
Elm, American
Hazel Nut
Hickory, Mockernut
Hickory, Pignut
Hickory, Shagbark
Hickory, Shellbark
Hophornbeam, Eastern
Locust, Black
Locust, Honey
Maple, Silver
Oak, Chestnut
Pecan
Redbud, Eastern
Shad Bush
Tuliptree
Walnut, Black
Walnut, White
Willow, Black
Reds - Pinks - Oranges
Dogwood
Gum, Black
Oak, Northern Red
Oak, Pin
Oak, Scarlet
Oak, Southern Red
Oak, Swamp Chestnut
Sourwood
Sumac
Browns
Oak, Bur
Oak, Post
Oak, Shingle
Oak, Swamp White
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