Arisaema triphyllum subsp. stewardsonii (Britton) Huttl.

a
PLANTS OF PENNSYLVANIA
Arisaema stewardsonii (L.) Schott
Jefferson County: Eldred Township; Penn,
route 949 at Mill Creek (Union Township line).
SW of the town of Sigel. Low, wet woods of
Betula alleghaniensis -Tsuga canadensis.
Tubular portion of spathe deeply corrugated.
D.	E. Boufford 21106 18 June 1979
E.	W. Wood
HERBARIUM, CARNEGIE MUSEUM (CM), PITTSBURGH, PA.
03699050