| scientific name | common name(s) | image gallery |
| Acacia constricta | Whitethorn acacia White-thorn acacia Mescat acacia Mescat wattle Whitethorn | |
| Acacia farnesiana | Huisache Sweet acacia Mealy wattle | |
| Acacia greggii | Catclaw acacia Gregg acacia Long-flower catclaw | |
| Acacia roemeriana | Roundflower catclaw Round-flower catclaw Roemer acacia Catclaw Roemer’s acacia Catclaw acacia | |
| Agave americana | American century plant Century plant | |
| Agave lechuguilla | Lechuguilla | |
| Agave parryi ssp. neomexicana | Parry's agave New Mexico agave | |
| Amorpha canescens | Leadplant Leadplant amorpha | |
| Amblyolepis setigera | Huisache daisy Butterfly daisy Honey daisy | |
| Aquilegia chrysantha var. hinckleyana | Hinckley's golden columbine Yellow columbine Hinckley columbine | |
| scientific name | common name(s) | image gallery |