ground cover, weed
Self-sown in my garden - seen occasionally locally as a garden escape. The photos in the Field Guide are not an exact match with my photos but there may be a range of variants.
Viola (US /vaɪˈoʊlə/ and UK /ˈvaɪ.ələ/) is a genus of flowering plants in the violet family Violaceae. It is the largest genus in the family, containing between 525 and 600 species. Most species are found in the temperate Northern Hemisphere, however some are also found in widely divergent areas such as Hawaii, Australasia, and the Andes.