| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Silphium | laciniatum | 534 |
| 2 | Silphium | perfoliatum | 481 |
| 3 | Silphium | terebinthinaceum | 341 |
| 4 | Silphium | integrifolium | 217 |
| 5 | Silphium | albiflorum | 200 |
| 6 | Silphium | gracile | 108 |
| 7 | Silphium | radula | 92 |
| 8 | Silphium | asteriscus | 80 |
| 9 | Silphium | compositum | 54 |
| 10 | Silphium | pinnatifidum | 8 |
| 11 | Silphium | simpsonii | 6 |
| 12 | Silphium | ginniferum | 5 |
| 13 | Silphium | glutinosum | 3 |