plantain virus x plantain virus x plantain virus x is a species of virus, part of the potexvirus viral family. it infects the weed plaintain (plantago lanceolata). dna sequencing has shown it to be synonymous with actinidia virus x, infecting kiwifruit (actinidia spp.) and blackcurrants (ribes nigrum). the same research also found plantain virus x infecting capsicum annuum (sweet pepper) and the ornamental flower browallia americana. plantain virus x virus classification (unranked): virus realm: riboviria kingdom: orthornavirae phylum: kitrinoviricota class: alsuviricetes order: tymovirales family: alphaflexiviridae genus: potexvirus species: plantain virus x synonyms actinidia virus x