About Arisaema stewardsonii Britton
Arisaema stewardsonii Britton is a herbaceous, perennial flowering plant that grows from a corm. Like other species in the Arisaema triphyllum complex, each of its leaves has three leaflets. It can be distinguished from other members of this complex by its strongly fluted, or ridged, spathe tube, a distinctive trait no other member of the complex has. Arisaema stewardsonii was first discovered growing in wet woods among Sphagnum mosses in eastern Pennsylvania. This original habitat gave it the common name bog Jack-in-the-pulpit. It grows primarily in the northeastern United States and the Maritime provinces of eastern Canada. Its range extends south to the mountains of eastern Tennessee and western North Carolina, and west to Ohio. As it is the most northern taxon in the Arisaema triphyllum complex, it is also sometimes called northern Jack-in-the-pulpit.