Cardamine quinquefolia

This little charmer is Cardamine quinquefolia, and it made its debut in the gardens of my circle of friends only several years ago. I don't think any of us had seen a pink-flowered toothwort before that. When I first saw it I assumed that it was a pink-flowered form of the native toothwort, Cardamine concatenata (aka Dentaria laciniata). But no, this is a Eurasian species.

I obtained my start only last year (thank you, Dixie), and it's off to a good start.