'buttonball tree' definitions:

Definition of 'buttonball tree'

From: GCIDE
  • Buttonwood \But"ton*wood`\, n. (Bot.) The Platanus occidentalis, or American plane tree, a large tree, producing rough balls, from which it is named; -- called also buttonball tree, and, in some parts of the United States, sycamore. The California buttonwood is Platanus racemosa. [1913 Webster]