Quercus ×deamii Trel. [macrocarpa × muehlenbergii]

Quercus ×deamii Trel. [macrocarpa × muehlenbergii]. Quercus × deamii, known as Deam's oak, is a naturally occurring hybrid of chinquapin oak and burr oak. It occurs sporadically where their ranges overlap in the eastern United States and eastern Canada. It is named for self-taught botanist and state forester of Indiana Charles C. Deam, who had forwarded samples to William Trelease for description. They thought it to be a cross of Quercus alba and Q. muehlenbergii due to the large numbers of those trees growing in the vicinity. Many sources still reference Q. × deamii as a hybrid of the white oak and chinkapin oak.