This species is not recorded in Pennsylvania in the usual sources. However, its range is discontinuous and spotty, and it is recorded in nearby sections of Ohio, as well as in the Virginia suburbs of Washington. At any rate, this colony along the Trillium Trail in Fox Chapel has been thriving for years.

For more pictures and more of a description, see the Enemion biternatum reference page.

Though this species is not recorded as established in Allegheny County, or indeed in Pennsylvania, this large patch has been flourishing for years along the Trillium Trail in Fox Chapel. (It is possible that it was introduced there, but it is certainly naturalized by now.)

For a description of the species, see the Enemion biternatum reference page.