Habitat:
Due to its thick bark, the bur oak was able to withstand prairie
fires and could grow on the edges of the plains, making it a forest fringe
species. It is usually an upland species, but is sometimes found near streams
and on floodplains. Although it prefers limestone soils, this species tolerates
dry, clay soils and also grows in sandy soils or alluvial bottoms. It is
tolerant of drought, is moderately shade tolerant and is more tolerant of
city pollution than most oaks.
Diseases:Bur oak is susceptible to a number of fungal diseases, galls and insect pests, but is seldom seriously damaged. Although considered to be resistant to oak wilt, the disease can kill large limbs, disfiguring affected trees.
Distribution: The bur oak is native to the eastern US, extending into south central US. It is the most widely distributed native oak in Iowa and the most abundant tree in the forests of the western and north central parts of the state.
