| Name | Arisaema triphyllum subsp. stewardsonii (Britton) Huttleston | 
| Authorship | (Britton) Huttleston | 
| Rank | Subspecies | 
| Placed in | Arisaema triphyllum (Linnaeus) Schott | 
| GUID | urn:lsid:ipni.org:names:19086-2 | 
| Citation | 1949 Bull. Torrey Bot. Club 76: 409 | 
| Holdings | 64 Specimens held in the Harvard University Herbaria identified as Arisaema triphyllum subsp. stewardsonii (Britton) Huttleston | 
| Identification made in | [no date] (61), 2011 (3) |