Definition of black haw:
(n) :
One of several woody plants of a few species, especially of Viburnum, all native to North America:
(n) :
Viburnum lentago.
(n) :
Viburnum prunifolium.
(n) :
Viburnum rufidulum (rusty blackhaw).
(n) :
Sideroxylon lanuginosum, also native to Mexico.