| Agave americana | Agave, American century plant | Agavaceae | | 3 | 3 |
| Agave parryi | Century Plant, Parry's agave, Mescal | Agavaceae | | 3 | 1 |
| Agave utahensis eborispina | Century Plant | Agavaceae | | 3 | 1 |
| Cordyline australis | Cabbage Tree | Agavaceae | Dracaena australis. Forst.f. | 3 | 0 |
| Dasylirion wheeleri | Sotol, Common sotol, Bear Grass, Common Sotol, Desert Spoon | Agavaceae | | 2 | 0 |