- a North American tree, Betula lenta, having smooth, blackish bark and twigs that are a source of methyl salicylate.
Origin of sweet birch
An Americanism dating back to 1775–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for sweet birch
In the morning we made a fire of ozier, sweet-birch, cherry wood, and samphire.The Little Red Foot
Robert W. Chambers