| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Lithophragma | affine | 423 |
| 2 | Lithophragma | heterophyllum | 394 |
| 3 | Lithophragma | parviflorum | 190 |
| 4 | Lithophragma | glabrum | 128 |
| 5 | Lithophragma | bolanderi | 41 |
| 6 | Lithophragma | tenellum | 17 |
| 7 | Lithophragma | cymbalaria | 10 |
| 8 | Lithophragma | maximum | 3 |
| 9 | Lithophragma | campanulatum | 2 |