For the other species, find a link below the page.
Viola
keiskei f. barbata / Higekemarubasumire ヒゲケマルバスミレ
Viola keiskei f.
barbata is a form of its original
species (Viola keiskei ) with hairs at the bases
of the side petals. No other differences are
recognizable. Bloom time: April-May.