Rosaceae | |
Petrophytum caespitosum
| (Nutt.) Rydb. | Mem. New York Bot. Gard. 1: 206 | 1900 |
Rosaceae | |
Petrophytum cinerascens
| (Piper) Rydb. | N. Amer. Fl. 22(3): 253 | 1908 |
Rosaceae | |
Petrophytum elatius
| (S. Watson) A. Heller | Cat. N. Amer. Pl. (ed. 2) 5 | 1900 |
Rosaceae | |
Petrophytum hendersonii
| (Canby) Rydb. | N. Amer. Fl. 22(3): 253 | 1908 |