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CCDB → Angiosperms → Compositae → Silphium → Silphium perfoliatum var. perfoliatum
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Silphium perfoliatum var. perfoliatum | Silphium perfoliatum L. | 14 | eFlora |