a small willow tree or shrub, Salix bebbiana, of northern North America, having a gray bark often with diamond-shaped furrows caused by fungi.
the slender stems of this tree, often carved into furniture, walking sticks, and other decorative objects.
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British Dictionary definitions for diamond willow
Canadian wood that may come from any species of willow and has a diamond pattern in the grain, used for making walking sticks, table lamps, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012