It was transferred to the genus " Petunia " as " P . integrifolia " by Hans Schinz and Albert Thellung in 1915 . " Petunia violacea ", described by John Lindley in 1833, is now considered a synonym . " Petunia inflata " has sometimes been considered to be part of the " P . integrifolia " species, but the two have different native ranges, with " P . inflata " growing in more northern areas.