Black haw Viburnum prunifolium

Description

Black haw, also called sweet haw, is a flowering shrub in the honeysuckle family that grows in woodlands and fields throughout much of North America. The bark, which contains astringent tannins, is used to make teas and tinctures, as well as infusions for topical use
Use caution if you are sensitive to aspirin or salicylates. May increase the effects of blood-thinning medications.
Black haw is used for increasing urine (as a diuretic) to relieve fluid retention; and for treating diarrhea, spasms, and asthma. It is also used as a tonic. Women use black haw for treating menstrual cramps and spasms of the uterus after childbirth; and for preventing miscarriage