| ID illustration | 71784 | 
| ID publication | 1342 | 
| ID volume | 146619 | 
| code scanning institute | SFPL | 
| scanning institute | San Francisco Public Library, San Francisco, California, U.S.A. | 
| URL volume | https://archive.org/details/reportsofexplora04unit_0 | 
| ID species cited | 720269 | 
| species cited | Opuntia fuscoatra Engelm. | 
| ID basionym cited | 720269 | 
| basionym cited | Opuntia fuscoatra Engelm. | 
| ID species recognized | 720349 | 
| species recognized | Opuntia humifusa (Raf.) Raf. | 
| ID basionym recognized | 171709 | 
| basionym recognized | Cactus humifusus Raf. | 
| ID genus cited | 1677 | 
| genus cited | Opuntia | 
| ID genus recognized | 1677 | 
| genus recognized | Opuntia | 
| Opuntia humifusa (Raf.) Raf. [33] | |
|   | Cactaceae - Opuntioideae - | 
| vernacular names | 
											
 | 
							
| Opuntia Mill. [363] | |
| J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 11 (1853-1856) [P. Roetter] [97] | |
| drawing: P. Roetter [153] | |
| epithet recognized species: humifusus,-a,-um [85] | |
| epithet cited species: fuscoatrus,-a,-um [2] | |
| Illustration contributed by: | San Francisco Public Library, San Francisco, California, U.S.A. |