| Cactaceae |
|
Peniocereus greggii
| (Engelm.) Britton & Rose | Contr. U.S. Natl. Herb. 12(10): 428, t. 74-75 | 1909 |
| Cactaceae |
|
Peniocereus greggii subsp. greggii
| | | |
| Cactaceae |
|
Peniocereus greggii var. greggii
| | | |
| Cactaceae |
|
Peniocereus greggii subsp. transmontanus
| (Engelm.) U. Guzmán | Cat. Cactaceas Mex. | 2003 |
| Cactaceae |
|
Peniocereus greggii var. transmontanus
| (Engelm.) Backeb. | Cactaceae 4: 1945 | 1960 |