Rock elm
NativeUlmus thomasii
Elm (Ulmaceae) · Elm · 50–80 ft
Knowing it
Corky ridges on older twigs and the hardest wood of any elm. Uncommon, on limestone slopes in northern and central Missouri.
What a tree company sees
Very strong; susceptible to Dutch elm disease.
Recorded in 9 counties
- Clinton County
- Jackson County
- Lewis County
- Marion County
- Phelps County
- Platte County
- Randolph County
- St. Louis City
- St. Louis County
From GBIF occurrence records. No record does not mean absent.