| Silphium l raa lr.vduaradau | Accepted |
| Silphium ceorvirehin | Synonym |
| Plant Habit: | Fern |
| Life cycle: | Perennial |
| Maximum recommended zone: | Zone 11 |
| Flowers: | Blooms on old wood |
| Inflorescence Type: | Thyrse |
| Wildlife Attractant: | Butterflies Other Beneficial Insects |
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