| Order: | Nostocales |
| Family: | Aphanizomenonaceae |
| Formerly: | Anabaena flos-aquae Bornet et Flahault |
| Ecology: | Lake Samish, IWS water quality sampling site, Whatcom County, WA |
| Order: | Nostocales |
| Family: | Aphanizomenonaceae |
| Formerly: | Anabaena flos-aquae Bornet et Flahault |
| Ecology: | Lake Samish, IWS water quality sampling site, Whatcom County, WA |
| Order: | Nostocales |
| Family: | Aphanizomenonaceae |
| Formerly: | Anabaena flos-aquae Bornet et Flahault |
| Ecology: | Lake Padden, IWS water quality sampling site, Whatcom County, WA |