Acer × freemanii, Freemanmaple or Freeman's maple, is a naturally occurring hybrid maple that is the result of a cross between Acer rubrum and Acer saccharinum.Page information. Freemanmaple is a hybrid in the maple family (Sapindaceae) taking the best qualities of 2 native trees, the red and silver maples. Additional Information.Freemanmaples likely occur more frequently in nature where the ranges of red and silver maple overlap, such as through the northeastern and northcentral United... Freeman’s maple is of hybrid origin, a cross between two native trees, red maple (Acer rubrum) and silver maple (Acer saccharinum). Bark Description. If you are considering growing Freemanmaple trees, read on for tips on how to grow a Freemanmaple and other Freemanmapleinformation. FreemanMapleInformation. Freeman’s Maple (FreemanMaple). (Interchangeably referred to as Acer rubrum x saccharinum or Acer x freemanii). Photos and information about Minnesota flora - FreemanMaple: opposite leaves 4 to 6 inches long, 5 coarsely toothed, sharply pointed lobes with a wedge-shaped central lobe. Additional Information.However, the FreemanMaple has more of the strength in wood of the Red Maple. FreemanMaple (Acer x freemanii 'Morgan'): This Freemanmaple can reach a height of 45 feet with a slightly narrower spread. Unfortunately, Freemanmaple is also known for its shallow root systems which, although less likely to infiltrate pipes and sewer systems, can be vulnerable to strong winds and storms.