| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Cactaceae | Acanthocereus | Triangle Cactus, Barbed-wire Cactus, Dildo-cactus |  (c) Bradley, Keith | ||
| Cactaceae | Ancistrocactus |  (c) Wong, Michelle - CC-BY | |||
| Cactaceae | Astrophytum | Star Cactus |  (c) Joseph, Aubert - CC-BY | ||
| Cactaceae | Cereus |  (c) Goldman, Douglas - CC-BY | |||
| Cactaceae | Consolea | Semaphore Cactus |  (c) Campos, Aidan | ||
| Cactaceae | Coryphantha | Pincushion Cactus |  (c) Hill, Sonnia | ||
| Cactaceae | Cylindropuntia | Cholla |  (c) Bradley, Keith | ||
| Cactaceae | Echinocereus | Hedgehog Cactus |  (c) Cressler, Alan M. | ||
| Cactaceae | Epiphyllum | Climbing Cactus | |||
| Cactaceae | Ferocactus | Barrel Cactus, Biznaga |  (c) Sorrie, Bruce A. - CC-BY | ||
| Cactaceae | Grusonia | Club-Cholla |  (c) Cressler, Alan M. | ||
| Cactaceae | Hamatocactus | Twisted-rib Cactus |  (c) Keith, Eric - CC-BY-NC, permission granted to NCBG | ||
| Cactaceae | Harrisia | Apple-cactus |  (c) Bradley, Keith | ||
| Cactaceae | Homalocephala |  (c) Sorrie, Bruce A. - CC-BY | |||
| Cactaceae | Lophophora | Peyote |  (c) Reala, Matt - CC-BY-NC, permission granted to NCBG | ||
| Cactaceae | Mammillaria | Pinchushion Cactus, Globe Cactus, Chilita |  (c) Cressler, Alan M. | ||
| Cactaceae | Opuntia | Prickly-pear Cactus |  (c) Sorrie, Bruce A. - CC-BY | ||
| Cactaceae | Pelecyphora |  (c) Campos, Aidan | |||
| Cactaceae | Pereskia | Pereskia |  (c) Hill, Sonnia | ||
| Cactaceae | Pilosocereus | Tree Cactus |  (c) Hammer, Roger L. | ||
| Cactaceae | Rhipsalis | Mistletoe Cactus, Pencil Cactus |  (c) Hammer, Roger L. | ||
| Cactaceae | Selenicereus | Moonlight Cactus |  (c) Herzog, Claire - CC-BY |