Contains 3 accepted taxa overall.
Characteristics
Classification
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) |
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) |