Perrenial plant with creeping rhizomes. Flowers bright yellow. A plant from zinc poluted soil. (Viola lutea subsp. calaminaria) Photo Gallery by Rogier van Vugt at pbase.com

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Rogier van Vugt | profile | all galleries >> Flora of the Netherlands. >> Violet family (Violaceae) >> Key for Viola >> Side facing petals are pointed upwards >> Flowers around two cm. Petals clearly longer than the sepals. Usually purple but can in some cases be yellow >> Perrenial plant with creeping rhizomes. Flowers bright yellow. A plant from zinc poluted soil. (Viola lutea subsp. calaminaria)

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Perrenial plant with creeping rhizomes. Flowers bright yellow. A plant from zinc poluted soil. (Viola lutea subsp. calaminaria)

Antalya, Turkey 2013 (12)

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Key for Viola (0)

Side facing petals are pointed upwards (0)

Flowers small (Around one cm.). Petals as long or shorter than the petals. Usually white or yellow. . Growing on disturbed soil. (0)

Flowers around two cm. Petals clearly longer than the sepals. Usually purple but can in some cases be yellow (0)

Anual or short lived perrenial plant. Flowers bicoloured with purple. A plant of arable and disturbed soil (Viola tricolor) (13)

Flowers slightly smaller than those of V. tricolor and often with more yellow in the flower. (Viola x contempta) (7)

Side facing petals are pointed downwards or are somewhat horizontal (1)

Sepals blunt. Flowers emerging directly from a low rosette of leaves. (1)

Sepals ending in a sharp point. Flowers emerging from leafy stems. (1)

Flowering stems emerging directly from the rhizome. (1)

Rhizome always with a rosette of leaves on top from which the flowering stems emerge. (1)

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