DCHP-1 Online
buttonwood 
n. the sycamore or plane tree, Platanus occidentalis, occurring in southern Ontario and southwards.
- 1793 (1905) . . . the timber on the good land, Maple, Bass and Button Wood, the soil black and deep.
- 1958 Canada has only one species of sycamore tree, also known as the buttonwood or plane tree.
- 1793 (1905) . . . the timber on the good land, Maple, Bass and Button Wood, the soil black and deep.