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Viola Viola arvensis Viola bicolor previously known as: Viola kitaibeliana, Viola kitaibeliana var. rafinesquei, Viola rafinesquei Viola blanda previously known as: Viola alsophila, Viola incognita, Viola leconteana Viola canadensis Viola cornuta Viola cucullata previously known as: Viola obliqua Viola hastata Viola lanceolata