Fast-growing deciduous tree up to 50 feet tall. Pyramidal in shape when young but becomes more rounded when mature. Gray-brown bark becomes deeply furrowed. Twigs are slender and red to gray-brown with buds that are triangular in shape and have slightly hairy scale edges.
- Commonly encouraged for planting as wildlife forage and habitat due to the mass production of acorns after a short period of time.
- Escapes from urban settings into nearby natural areas, including forests.
- It is tolerant of many types of soil and growing conditions.
- It can hybridize with native oak species.
Classification in Wisconsin: Prohibited
Species Assessment Groups (SAG) were assembled to recommend a legal classification for each species considered for NR 40. The recommendation for sawtooth oak was based upon this literature review developed by the department.
Leaves: Simple, alternate and shiny two to eight inches long. Leaves are dark green that turn dull yellow or brown in fall. Leaf edges are serrated and bristled.
Flowers: Brown, inconspicuous and monoecious.
Fruits & seeds: Brown, oval acorns with a cap that has long recurving scales that cover most of the nut.
Similar species: Chestnut (Castanea spp.) has similar leaves that are larger.
Mechanical: Pull seedlings.
Chemical: Foliar spray small trees with glyphosate. For larger trees, girdle and spray with glyphosate or use as a cut stump treatment.
View sawtooth oak pictures in our photo gallery.