Mating parents Viola keiskei ( 2n=24 ) Viola chaerophylloides var. sieboldiana ( 2n=24 ) Scientific Name Viola x sp. Viola keiskei Miquel x V. chaerophylloides (Regal) W. Becker var. sieboldiana (Maxim.) Makino Common names Stalk Form Hybrids between stemless species. Habitat Distribution Japan domestic Japan overseas Others Flower Shape Middle size. Some individuals have a hairy side valve and some have a hairless side valve. Color White and rounded petals. Spur Long cylindrical shape. Season March-May. Stigma Aromatic Others Leaf Shape Lanceolate thick egg-shaped and chrysanthemum leaves with irregular serrated. Color Both sides are green. Others Many whitish fine hairs on both sides. The petioles are dark brown-purple. Characteristics of roots Endangered Information Type Specimen Chromosome Number Reference Information Others