| Scientific Name | Common Name | Local Rank |
|---|---|---|
| Amaranthus blitoides | procumbent pigweed, prostrate amaranth | C |
| Amaranthus californicus | Californian amaranth | B |
| Amaranthus palmeri | Palmer's amaranth | A1x |
| Amaranthus powellii | Powell's amaranth | A1 |
| Nitrophila occidentalis | nitrophila | A1 |