Petunia integrifolia and Petunia violacea have both been known by the vernacular name of violet petunia or violetflower petunia, both being species of wild petunia with violet-colored blooms. Petunia integrifolia is native to Argentina. P. integrifolia bears flowers approximately 1.5 inch in diameter and the plant is typically smaller and harder to cultivate than the well-known hybrid bedding Petunia now known correctly as Petunia × atkinsiana.Petunia integrifolia and P. violacea are two out of ...