Mating parents Viola odorata L. ( 2n=20 ) Viola sororia 'Papilionacea' Willd. ( 2n=54 ) Viola x 'Governor Herrick' Viora odorata x V. sororia 'papilionacea' (USA, 1910) Flower Shape A more round large flower. Color Dark purple. Spur Short and thick. Season Stigma Aromatic It is classified in the one of nonscented violet. Others Leaf Shape Heart form with sharp tip. Color Green. Others A saw blade is conspicuous. A ground part does not wither in winter. Reference Information Others Sterility. It is very strong and tolerance is in an illness noxious insect.