Omaha tree guide
Bur oak
Quercus macrocarpa
Nebraska Forest Service describes bur oak as the state's most common native oak, occurring naturally in the eastern third of Nebraska.
What this page can tell you
How to recognize this kind of tree
This profile is bur oak, Quercus macrocarpa, in the white-oak group.
These species-level facts cannot diagnose the condition of one particular tree, prove that work is needed, or determine whether it is hazardous.
What to look for
- Rounded-lobed leaves distinguish the white-oak group; bur oak also has deeply furrowed bark and a conspicuously fringed acorn cap.
- The Nebraska Street Trees guide lists about 60 feet mature height and width for planning.
What changes by season
Use whatever features are available now. Missing leaves, flowers, fruit, or pods often just means the timing is wrong—not that the tree cannot be a match.
When leaves are on
Compare alternate leaves or buds staggered along the twig, one leaf blade per stem, and rounded leaf lobes. Use more than one feature and do not force a match from leaf shape alone.
When leaves are off or hard to see
Compare deep furrows, a broad spreading tree, and a rounded tree. Bark and overall shape can help narrow it down, but neither confirms the species by itself.
When fruit or seeds are present
an acorn with a fringed cap and acorns can provide another useful clue. Not seeing them may simply reflect season, age, sex, or variety.
Typical mature size
The Nebraska Street Trees guide lists about 60 feet mature height and width for planning.
Similar Omaha trees
These are the closest lookalikes among the 10 common local trees in this guide. Other species can still look similar.
Eastern cottonwood
Populus deltoides
These trees can look similar in how the leaves or buds attach, whether the leaf is simple or compound, and bark. Check leaf shape and fruit or seeds next instead of relying on the name or one photograph.
View that tree profileNorthern red oak
Quercus rubra
These trees can look similar in how the leaves or buds attach, whether the leaf is simple or compound, and fruit or seeds. Check leaf shape and bark next instead of relying on the name or one photograph.
View that tree profileImportant Omaha-area context
Where oak wilt is a concern, Nebraska Forest Service says oak pruning should be restricted from April through June.
This does not prove that a particular tree is infested, diseased, structurally unsound, or in need of removal.
What to consider for an individual tree
Unusual canopy browning can have more than one cause; the profile cannot diagnose oak wilt or determine individual-tree risk.
Confirm current pruning timing and evaluate the individual tree before work.
Sources
- Nebraska Forest Service: Oak, BurNebraska
- Nebraska Forest Service: Trees to PlantNebraska
- Nebraska Statewide Arboretum: Street TreesEastern Nebraska · 2024-03
- University of Minnesota Extension: Oak buds and green acorns can harm horses — Identifying oaksUpper Midwest · 2021
- Nebraska Forest Service: Pruning TreesNebraska
- Nebraska Forest Service: Cottonwood, EasternNebraska
- Nebraska Forest Service: Oak, Northern RedEastern Nebraska