⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-15269, with some changes.

Arisaema atrorubens f. pusillum (Peck) Fernald is a synonym of Arisaema triphyllum (L.) Schott

The record derives from WCSP which reports it as a synonym (record 15269) with original publication details: Rhodora 42: 252 1940.