cohosh

noun

common name in the English language for several loosely related woodland herbs

Wiktionary

Pronunciation: /kəˈhɒʃ/

noun

Etymology: From an Algonquian word meaning rough, probably from Eastern Abenaki / Penobscot *kkwὰhas. Compare Massachusett kushki (“(it is) rough”). Compare English cocash.

A perennial American herb (Caulophyllum thalictroides), the rough rootstock of which is used in medicine.
A smooth herb, Actaea racemosa, marketed for medicinal use.