While some sources divide New England's Jack-in-the-pulpits into three species (Arisaema triphyllum, A. atrorubens, and A. stewardsonii), most modern authorities lump them all into A. triphyllum.
- Synonyms: Arisaema atrorubens, Arisaema stewardsonii
- Family: arum (Araceae)
- Habitat: moist woods, swamps
- Height: 1-3 feet
- Flower size: actual flowers are tiny; "pulpit" structure (a spathe) is 3-4 inches high
- Flower color: green, sometimes streaked with red-brown
- Flowering time: April to June
- Origin: native
Jack-in-the-pulpit has red berries, which ripen in late summer or early fall.