Anabaena catenula Kützing ex Bornet & Flahault Dataset Nortaxa (Artsnavnebasen) Rank SPECIES Classification kingdom Bacteria phylum Cyanobacteria class Cyanophyceae order Nostocales family Nostocaceae genus Trichormus species Trichormus catenula Name Homonyms Anabaena catenula Kützing ex Bornet & Flahault