Viola grypoceras v. exilis 'Sylettas' the cyclamen-leaf violet

Viola grypoceras v. exilis 'Sylettas'

Viola grypoceras v. exilis 'Sylettas'

Viola grypoceras v. exilis 'Sylettas'

It might be hard for some to believe, but this little charmer is in some gardens regarded as a little devil. It definitely lives in the fast lane. Individual plants are short-lived, and they seed about prolifically. The flowers are not much bigger than a lusty house fly, and their color is quiet.
But those leaves: I'll gladly forgive its bad habits if I can have those leaves!
We can't blame the violet for another annoyance associated with it: it's got name problems. The mouth-full which appears in the post title above is the currently accepted name among taxonomists. But nurseries are apt to sell it as "Viola koreana", a name not published formally. And the cultivar name is sometimes given as Syletta, Sylettas, Styletta and so on.
I say it's worth the bother.
One more interesting note: Viola grypoceras was named by Asa Gray, the nineteenth century Harvard botanist who was the first to call attention to the similarities of the flora of eastern North America and Eastern Asia, Japan in particular.