Petuvirus is a genus of viruses, in the family Caulimoviridae. Plants serve as natural hosts. There is currently only one species in this genus: the type species Petunia vein clearing virus. Diseases associated with this genus include: plants: chlorotic vein clearing, leaf malformation.
It would be completely ridiculous to say that Plants are kind hosts who have Caulimoviridae family over for dinner, because plants don't have dinner parties, and Caulimoviridae is a completely different kind of family.