| Pinaceae | |
Pinus rigida fo. globosa
| Allard | Rhodora 42(500): 308 | 1940 |
| Pinaceae | |
Pinus rigida fo. rigida
| | | |
| Pinaceae | |
Pinus rigida var. rigida
| | | |
| Pinaceae | |
Pinus rigida subsp. serotina
| (Michx.) Engelm. | Trans. Acad. Sci. St. Louis 4: 177 | 1880 |
| Pinaceae | ** |
Pinus rigida subsp. serotina
| (Michx.) R.T. Clausen | Torreya 39(5): 126 | 1939 |
| Pinaceae | ** |
Pinus rigida var. serotina
| (Michx.) Loudon ex Hoopes | Book Evergr. 120 | 1868 |
| Pinaceae | |
Pinus rigida var. serotina
| (Michx.) Mill. | Gard. Dict. (ed. 8) no. 10 | 1768 |