View photos of the edible plant Viburnum rufidulum (Rusty blackhaw), profiled in the Wild Edible Series: Arkansas, Kansas, Louisiana, Missouri, North Carolina, Oklahoma, Tennessee, Texas: Vol 1, and others.

A passage from Wild Edible Plants of Arkansas:

When fully ripe in the fall, the berries are purple/blue–black. The fruit’s flesh is weakly sweet, so the berries are fine consumed raw, however, the seed is large and best spit–out.