Hugh Knott:
Viola canina (Heath Dog-violet)
Hugh Knott:
Viola canina (Heath Violet)
Hugh Knott:
Viola canina (Heath Violet)
Hugh Knott:
Viola canina (Heath Violet)
Hugh Knott:
Viola canina (Heath Violet)
Hugh Knott:
Viola hirta (Hairy Violet)
Hugh Knott:
Viola lactea (Pale Dog-violet)
Hugh Knott:
Viola odorata (Sweet Violet)
Hugh Knott:
Viola odorata (Sweet Violet)
Hugh Knott:
Viola palustris (Marsh Violet)
Hugh Knott:
Viola palustris (Marsh Violet)
Hugh Knott:
Viola palustris (Marsh Violet)
Hugh Knott:
Viola reichenbachiana (Early Dog-violet)
Hugh Knott:
Viola reichenbachiana (Early Dog-violet)
Hugh Knott:
Viola riviniana (Common Dog-violet)
Hugh Knott:
Viola riviniana (Common Dog-violet)
Hugh Knott:
Viola riviniana (Common Dog-violet)
Hugh Knott:
Viola tricolor (Wild Pansy)
Hugh Knott:
Viola tricolor (Wild Pansy)
Hugh Knott:
Viola tricolor (Wild Pansy)
Hugh Knott:
Viola x intersita [V. riviniana x V. canina] (hybrid of Common Dog-violet x Heath Dog-violet)
Hugh Knott:
Viola x intersita [V. riviniana x V. canina] (hybrid of Common Dog-violet x Heath Dog-violet)
Hugh Knott:
Viola x intersita [riviniana x canina] (hybrid of Common & Heath Dog-violets)