| Plant Habit: | Herb/Forb |
| Life cycle: | Other |
| Minimum cold hardiness: | Zone 4b -31.7 °C (-25 °F) to -28.9 °C (-20 °F) |
| Maximum recommended zone: | Zone 5b |
| Flowers: | Showy |
| Conservation status: | Extinct (EX) |
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