This woodland sub-shrub is one of the few we have that loves full shade. It's about ankle high, and spreads slowly to form ground-covering colonies. The name refers to the cluster of bright red berries it produces in the fall, which are preceded by a tidy cream-colored flower surrounded by a whorl of oval leaves. 
 
It may not seem like it, but bunchberry is a tiny little dogwood, and like larger dogwood shrubs it prefers rich moist soils. This plant can take a little while to get established, and is vulnerable to being overrun by more aggressive plants while it sets roots. Consider planting it with twinflower, holly fern and mitrewort.