Sanguisorba officianlis

A clump-forming, rhizomatous perennial with pinnate, medium green, basal leaves, each with 7-25 serrate leaflets. The flowers are the best, small bumble bee like clumps wave in the wind all summer, carrying on into winter with their dried  stems. 80cm. Large plants.

Auckland Museum, CC BY 4.0 , via Wikimedia Commons