Viola reichenbachiana
Viola reichenbachiana, the early dog-violet, is a violet.
This species hybridises with Viola riviniana, the common dog-violet, to produce Viola × bavarica.
References
Partridge, James (2007) Viola × bavarica: the punctual Dog-violet BSBI News 106:8-9 (illustrated with colour photographs on inside back cover of this edition)
