Arisaema triphyllum subsp. stewardsonii (Britton) Huttleston

Arisaema triphyllum subsp. stewardsonii (Britton) Huttleston is a synonym sensu FNA Ed. Comm., 2000 of:

Arisaema stewardsonii Britton, an accepted species name sensu Wyatt & Stoneburner, 2022.