Buttonwood

• (n.) 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 P. racemosa.
Found on http://thinkexist.com/dictionary/meaning/buttonwood/

Buttonwood

But'ton·wood` noun (Botany) 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 P. racemosa ...
Found on http://www.encyclo.co.uk/webster/B/119

buttonwood

buttonwood: see plane tree.
Found on http://www.infoplease.com/ce6/sci/A0911304.html
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