Viola x wittrockiana (Lady's Delight, Pansy) | North Carolina Extension Gardener Plant Toolbox
Viola x wittrockiana - Common Pansy | PlantMaster
Pansy viola x wittrockiana Matrix Morpheus | Lucas Greenhouses
pansy | Description, Flower, Species, & Facts | Britannica
Viola biocolor2.jpg
Viola x wittrockiana (Lady's Delight, Pansy) | North Carolina Extension Gardener Plant Toolbox
Karyologic and Heterosis Studies of the Artificial Inter- and Intraspecific Hybrids of Viola ×wittrockiana and Viola cornuta in: HortScience Volume 53 Issue 9 (2018)