Search results SearchResult 1 of 1Content pagesMultimediaEverythingAdvanced Viola sororia (category Viola) petioles. Viola sororia reportedly hybridizes with V. cucullata (= V. ×bissellii House), V. hirsutula [= V. ×cordifolia (Nuttall) Schweinitz], V. pedatifida 6 KB (552 words) - 23:20, 5 November 2020