Contains 3 accepted taxa overall.

Characteristics
Arisaema Mart.
JACK-IN-THE-PULPIT
Classification
ALISMATALES
Arisaema
Citation
ARISAEMA Martius, Flora 14: 459. 1831.
-
TYPE: Non designatus.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Arisaema dracontium GREENDRAGON Native FACW (NWPL) FACW (DEP)
Arisaema quinatum PRESTER-JOHN Native FACW (DEP)
Arisaema triphyllum JACK-IN-THE-PULPIT Native FACW (NWPL) FACW (DEP)
[Family identification key]
1.  Leaflets (5)7-13(-21); spadix tapering apically, longer than spathe
1.  Leaflets 3-5; spadix blunt apically, shorter than spathe
2
2.  Leaflets (3)5, lower surface usually glaucous; spathe blade apex obtuse to abruptly apiculate; spadix terminal sterile appendix 1-2 mm wide, usually slightly angled or curved away from the blade
2.  Leaflets 3, lower surface glaucous or not; spathe blade apex aucte to acuminate; spadix terminal sterile appendix 2-10 mm wide, generally straight
3
3.  Spathe blade internally usually wholly dark purple with few to no pale lines, uncommonly wholly green or green with white stripes; spathe tube flange (deflexed portion of tube apex) 1-3 mm broad, usually revolute; spadix terminal sterile appendix 2-5 mm wide; fruits 4-5(7) mm wide
3.  Spathe blade internally not wholly dark purple; spathe tube flange (deflexed portion of tube apex) 2-7 mm broad, revolute to nearly plane; spadix terminal sterile appendix 4-10 mm wide; fruits (6)8-12 mm wide
4
4.  Spathe blade internally usually green with white stripes, uncommonly dark purple with pale stripes, 2-3 times as long as wide, apex long-acuminate; spadix terminal sterile appendix width even throughout its length or slightly widened near the apex
4.  Spathe blade internally usually dark purple with green stripes, sometimes green with white stripes, 1-2 times as long as wide, the apex acute to short-acuminate; spadix terminal sterile appendix distinctly widened at the apex
Genus Synonyms
Synonym Full Citation Basionym Type
Muricauda Muricauda Small, Fl. S.E. U.S. 227, 1328. 1903. TYPE: Muricauda dracontium (Linnaeus) Small (Arum dracontium Linnaeus)