NOT a Trillium.

      Hepatica Nobilis according to the label.  I wonder what they cost now, because I know that  label predates 2016.
     Having just checked a site or three - cheapest/simplest I could find was £5.00.
      Why did I say not a Trillium?  Well, despite the flower having a full complement of six Petals, it, apparently, boasts a mere three Sepals.  Who'd a thunk it?