different between caulophyllum vs cohosh

caulophyllum

caulophyllum From the web:

cohosh

English

Etymology

From an Algonquian word meaning "rough", probably Eastern Abenaki / Penobscot *kkw?has. Compare Massachusett kushki (“(it is) rough”). Compare English cocash.

Pronunciation

IPA^(key): /k??h??/

Noun

cohosh (countable and uncountable, plural cohoshes)

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

Synonyms

(Caulophyllum thalictroides): blue cohosh, squaw root, papoose root
(Actaea racemosa): Cimicifuga racemosa, black cohosh, black bugbane, black snakeroot, fairy candle