noun, plural box·ber·ries.
Examples from the Web for boxberry
Boxberry, fever-bush, sweet fern, and horseradish make a good and healthy diet-drink.The American Frugal Housewife|Lydia M. Child
Daily I met happy groups of Wallencampers, with baskets and pails in their hands, going "boxberry plummin.'"Cape Cod Folks|Sarah P. McLean Greene
Have no objection, either, to his bringing Elinor boxberry plums.
Out of the tufts of boxberry leaves and plums they made the word "Welcome," which they hung over the door.In The Boyhood of Lincoln|Hezekiah Butterworth
I never read yet of any maiden losing her heart on boxberry plums; though, to be sure, he might bewitch them.