Very good plant in the upper echelon of perennials and highly valued for its mid summer blooms of thickly textured intriguing yellow flowers on the terminals of the stems.  These gets nice broad leaves on herbaceous stems that in shape is not unlike a Hydrangea.   Imposing at maturity.

A collection from Japan by Quarry Hill Botanic Garden of this indispensable summer-flowering, beefy perennial. This is a rare opportunity to obtain this species with wild-origin provenance. Yellow flowers of substance like small shuttlecocks are held well above the leaves on upright stems in midsummer. Still remember being awestruck by a superb specimen at the Minnesota Landscape Arboretum years ago.