rhodopseudomonas harwoodiae rhodopseudomonas harwoodiae rhodopseudomonas harwoodiae is a bacterium from the genus of rhodopseudomonas. rhodopseudomonas harwoodiae scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: nitrobacteraceae genus: rhodopseudomonas species: r. harwoodiae binomial name rhodopseudomonas harwoodiaevenkata ramana et al. 2012