Scarlet Oak
Quercus coccinea
The Scarlet Oak (Quercus coccinea) is a medium-to-large deciduous oak of the red oak group, renowned for producing the most vivid, brilliant scarlet-red autumn foliage of any oak species. Native to the eastern United States, it is a tree of dry, upland sites with deeply cut, lacy leaves and a graceful, open crown that has made it one of the most popular ornamental oaks for landscaping.
• Named for its spectacular scarlet-red autumn leaf color — the most vivid of all oaks
• The species epithet "coccinea" means "scarlet" or "deep red" in Latin
• One of the most popular ornamental oaks, prized for its reliable, brilliant fall color
• Leaves are deeply cut with C-shaped sinuses, giving them a delicate, lacy appearance
• Member of the red oak group, with bristle-tipped lobes and biennial acorn maturation
• Often confused with pin oak and black oak, but distinguishable by its deeply cut leaves and dry upland habitat
• Ranges from southern Maine and southern Ontario westward through New York, Pennsylvania, Ohio, and Indiana to southern Michigan and Illinois
• Extends southward through the Appalachian Mountains to northern Georgia, Alabama, and Mississippi
• Also occurs in the Ozark Highlands of Missouri and Arkansas
• Most abundant in the Appalachian region and along the Atlantic coastal plain
• Occurs at elevations from near sea level to approximately 1,500 meters in the southern Appalachians
• First described by the French botanist André Michaux in 1801
• Often found on dry, sandy, or rocky upland sites alongside black oak, chestnut oak, and various pines
• The species is broadly sympatric with northern red oak and pin oak, with which it is often confused
Size:
• Typically 18 to 25 meters tall, occasionally reaching 30 meters
• Trunk diameter: 40 to 90 cm
• Crown is broadly rounded and open, with spreading, ascending branches
Bark:
• Dark brown to grayish-brown, developing broad, flat ridges and shallow furrows
• Less dark and less deeply furrowed than black oak bark
• Inner bark is reddish (not yellow as in black oak)
Leaves:
• Obovate, 8 to 18 cm long and 6 to 13 cm wide
• Deeply lobed with 5 to 7 lobes, each terminating in several bristle-tipped teeth
• Sinuses between lobes are deep and C-shaped, reaching nearly to the midrib — deeper than most other red oaks
• Dark glossy green above, paler and smooth beneath (lacking the rusty hairs of black oak)
• Turn brilliant scarlet to crimson-red in autumn — the best fall color of any North American oak
Acorns:
• Ovoid, 1.5 to 2.5 cm long
• Cup covers one-third to one-half of the acorn, with shiny, tightly appressed scales
• Take two years to mature
• Borne on short stalks, often in pairs
Habitat:
• Prefers dry, well-drained, acidic, sandy or gravelly upland soils
• Common on dry ridges, rocky slopes, and sandy plains
• Drought-tolerant once established
• Shade-intolerant, requiring open canopy conditions for successful regeneration
• Often found in oak-pine and oak-hickory forests, especially on south- and west-facing slopes
• Associates with black oak, chestnut oak, pitch pine, and various hickories
Ecosystem role:
• Acorns consumed by wild turkeys, blue jays, deer, squirrels, and black bears
• The deeply lobed leaves support numerous species of Lepidoptera caterpillars
• Open crown structure allows light penetration, supporting a diverse understory of shrubs and herbaceous plants
• The species' drought tolerance makes it valuable for maintaining forest cover on dry, marginal sites
• Brilliant autumn foliage contributes to the fall tourism economy of the Appalachian and New England regions
• Susceptible to oak wilt, oak leaf blister, and various canker diseases
Fun Fact
Scarlet oak produces the most reliably brilliant red autumn color of any oak in the world — its leaves turn a vivid, true scarlet that rivals even the best maples. The species' scientific name "coccinea" (scarlet) was chosen by the French botanist André Michaux, who was so struck by the tree's blazing red autumn display in the Appalachian forests that he named it after the brightest red pigment known in his era — the dye derived from the cochineal insect.
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