Northern Prairie Wildlife Research Center
Southern Wetland Flora
Field Office Guide to Plant Species
Quercus nuttallii Palmer
- Family: Beech (Fagaceae)
- Flowering: April-May
- Field Marks: Nuttall oak most nearly resembles pin oak, differing by its larger acorns 3/4 - 1
inch long and its larger buds.
- Habitat: Low woods, alluvial bottomlands that are frequently flooded.
- Habit: Tree up to 80 feet tall; trunk diameter up to 2 1/2 feet; crown rounded.
- Bark: Light brown to dark brown, shallowly furrowed.
- Twigs: Slender, smooth, reddish brown to gray.
- Leaves: Alternate, simple, 5- to 7-lobed, the sinuses extending not more than half-way to the
midvein, smooth on the upper surface, paler and smooth on the lower surface except for tufts
of hairs in the axils of the veins, up to 10 inches long, up to 5 1/2 inches wide.
- Flowers: Male and female borne separately on the same plant, appearing when the leaves begin
to unfold; male flowers crowded into slender, drooping spikes; female flowers few together.
- Sepals: 0.
- Petals: 0.
- Stamens: 3-12.
- Pistils: Ovary inferior.
- Fruits: Acorns 1-4 together, 1 - 1 1/2 inches long, with or without stalks, the nut ellipsoid,
up to 1 1/4 inches across, reddish with dark vertical stripes, enclosed for 1/3 - 1/2 its length
by the cup.
Previous Species -- Water Oak (Quercus nigra)
Return to Species List -- Group 5
Next Species -- Pin Oak (Quercus palustris)