Viola lutea grandiflora
https://www.doaks.org/resources/rare-books/variae-ac-multiformes-florum-species-expressae-ad-vivum-et-aeneis-tabulis-incisae/viola-lutea-grandiflora/view
https://www.doaks.org/resources/rare-books/variae-ac-multiformes-florum-species-expressae-ad-vivum-et-aeneis-tabulis-incisae/viola-lutea-grandiflora/@@download/image/DSC_0195.jpg
Viola lutea grandiflora