Prokaryota Superregnum: Bacteria Group: Terrabacteria group Group: Cyanobacteria/Melainabacteria group Phylum: Cyanobacteria Classis: Cyanophyceae Subclassis: Nostocophycideae Ordo: Nostocales
Familia: Nostocaceae Genus: Anabaena Species: Anabaena azollae