What's the difference between cohosh and rootstock?

Cohosh

Definition:

(n.) A perennial American herb (Caulophyllum thalictroides), whose rootstock is used in medicine; -- also called pappoose root. The name is sometimes also given to the Cimicifuga racemosa, and to two species of Actaea, plants of the Crowfoot family.

Example Sentences:

Definition:

(n.) A perennial underground stem, producing leafly s/ems or flower stems from year to year; a rhizome.

Example Sentences:

(1) The rootstocks of Aconitum plants, which contain aconite alkaloids, have been common components of Chinese herbal recipes.
(2) The rootstocks of aconitum plants have been commonly employed in traditional Chinese herbal recipes for "cardiotonic" actions and for relieving "rheumatism."
(3) Rootstocks, or varieties that restrict the uptake of toxic ions, increase the salt tolerance of some susceptible fruit crops.
(4) The response was measured by the increase in cross-sectional trunk area, total shoot growth, and fruit yield of McIntosh apple trees on M.26 rootstock.
(5) The high concentration of transisoasarone was found in the rootstock (rhizome).
(6) Toxicological evaluation revealed that aconites from the Aconitum rootstocks were the only plausible casual factor for intoxication.
(7) The use of viroid-free sources of seeds, seedlings, rootstocks and budwood should greatly reduce the risk of the future spread of the viroid.
(8) Get growing An apple tree with a semi-dwarfing rootstock, such as MM106, will allow you the luxury of both blossom and fruit even in the smallest garden Email Dan at dan.pearson@observer.co.uk