| 1. Inflorescence ± raceme-like; bracts on peduncle 0; n&e Desert Mountains |
| A. utahensis |
| 1' Inflorescence a panicle; bracts on peduncle obvious; more widespread |
| |
| 2. Leaf lanceolate, gray; bracts on peduncle scarious; s Desert Mountains, Sonoran Desert |
| A. deserti |
| 2' Leaf ovate, dark green; bracts on peduncle large, fleshy; s South Coast |
| A. shawii
|