| Plant Habit: | Herb/Forb |
| Life cycle: | Other |
| Minimum cold hardiness: | Zone 2 -45.6 °C (-50 °F) to -42.8 °C (-45°F) |
| Maximum recommended zone: | Zone 7b |
| Leaves: | Semi-evergreen |
| Flowers: | Nocturnal |
| Underground structures: | Taproot |
| Pollinators: | Water |
| Conservation status: | Extinct (EX) |
