This creeping plant is called an Allegheny spurge because it is a native of the Allegheny mountains of the eastern United States.

Allegheny spurge spreads by rhizome to form thick mats up to two feet high, but mostly about a foot high. In the early to mid-spring it bears fragrant white flowers, which are attractive to pollinators. This plant prefers shady spots with rich organic soils and consistent soil moisture, although it will tolerate droughts. It will naturalize easily and is suitable as an understory plant for native or woodland gardens and for stabilizing slopes.