Possumhaw viburnum, larger withe-rod, possumhaw, Shawnee haw, shonny haw, swamp haw, white rod.
A perennial shrub that grows to 20 feet in height. Leaves are up to 5 inches long, varying from elliptic to ovate, with acute to rounded tops. Produces a spreading white or occasionally pink flower, and bitter berries in drupes.
May to early July.
Moist and open woods, wooded swamps, wet pinelands, and bogs.
bark of root or stem.
The bark is a uterine sedative, diuretic, antispasmodic, and tonic.