Flowers blue. Plant without underground runners. Leaves usually with a heart shaped base. (Viola canina)
by Rogier van Vugt
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Flowers small (Around one cm), white or yellow rarely faint blue in the upper petals. (Viola arvensis)
by Rogier van Vugt
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Anual or short lived perrenial plant. Flowers bicoloured with purple. A plant of arable and disturbed soil (Viola tricolor)
by Rogier van Vugt
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Viola
by Douglas Houck
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Flowers slightly smaller than those of V. tricolor and often with more yellow in the flower. (Viola x contempta)
by Rogier van Vugt
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Flowers slightly bigger than those of V. arvensis and often with some blue on the upper petals. (Viola x contempta)
by Rogier van Vugt
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Flowers fragrant, dark bluish lilac. (sometimes white). Forms colonies by means of thin runners. (Viola odorata)
by Rogier van Vugt
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Flower spur blunt or notched at the tip always paler than the petals. (Viola riviniana)
by Rogier van Vugt
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A plant of Marshes and bogs. Flowers pale lilac with dark veins, (Viola palustris)
by Rogier van Vugt
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viola
by wernere01
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