What is the rarest silver maple?
Could you please clarify what you mean by the "rarest silver maple"? Are you referring to a specific variety of silver maple tree that is considered rare due to its unique characteristics, scarcity in the wild, or some other factor? If so, it's important to note that the term "rarest" can be subjective and may vary depending on the region, habitat, and conservation status of the tree. Additionally, there may be multiple varieties of silver maple that could be considered rare, depending on the criteria used to define rarity. Can you provide any further context or specify the criteria you are using to determine what constitutes the "rarest silver maple"?