balsam willow

noun

: a low shrub or small tree (Salix pyrifolia) of northern North America often occurring up to the tree line and having leaves prominently reticulate when mature and balsamic when crushed

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!