| Echinocereus engelmannii |
| Authority | : | (Parry ex Engelm.) Lem. 1868 |
| Synonyms | : | Cereus engelmannii Parry ex Engelm. 1852 |
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| Bunkerville (Nevada), USA; 5 August 2017. |
Beaver dam (Arizona), USA; 5 August 2017. | ||
| Echinocereus triglochidiatus |
| Authority | : | Engelm. 1848 |
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| Zion National Park (Utah), USA; 11 August 2017. |