|Quercus macrocarpa 'Big John' Jablonski (2013)|
Subgenus Quercus, section Quercus (the white oaks)
Accepted. Journ. Int. Oak Soc., 24:163
Deciduous tree selected for its fastigiate growth form. Leaves, bark, stems typical of species. 20 x 5 m. Plant may be sterile. No fruit set observed over last several seasons.
From cultivation. Original plant found in Springfield, IL, USA by Guy Sternberg and John Benedict.
Harold Hillier Herbarium 7392 HILL