Report from the Oak ICRA checklist
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Full Name: - Quercus shumardii 'ACNRT1'

Quercus shumardii 'ACNRT1' R. Tate, U.S.Plant Patent 15226 (2004) Cultivar name has been accepted as Registered
Infrageneric Classification
Subgenus Quercus, section Lobatae (the red oaks)
Nomenclature Note
US Patent granted to Ray Tate on 12th October, 2004. Probably to be marketed under the US applied for trademark MADISON™ (applied for by C. R. Tate, Georgia, USA)
Description may be found in the on-line patent documentation
Alternatively a photographic image of the patent documentation may be downloaded (for which you will need a TIFF reader on your computer).
Nomenclatural Standard
United States Plant Patent PP 15226