Aruncus sylvester, the goat's beard, is a species of flowering plant in the family Rosaceae, found from the Himalayas to the Russian Far East and Japan. As its synonym Aruncus aethusifolius it has gained the Royal Horticultural Society's Award of Garden Merit.

Subtaxa

The following varieties are accepted:

  • Aruncus sylvester var. laciniatus (H.Hara) H.Hara – northern Japan
  • Aruncus sylvester var. sylvester