Medicinal herbs
In general use, herbs are plants with savoury
or aromatic properties that are used for flavouring and garnishing food,
in medicine, or as fragrances. Culinary use typically distinguishes herbs from
spices. Herbs refer to the leafy green or flowering parts
of a plant (either fresh or dried), while spices are usually
dried and produced from other parts of the plant, including seed, bark, rootsand fruits.
Herbs have a variety of uses including culinary,
medicinal, and, in some cases, spiritual. General usage of the term
"herb" differs between culinary herbs and medicinal herbs; in
medicinal or spiritual use, any parts of the plant might be considered as
"herbs", including leaves, roots, flowers, seeds, root bark, innerbark (and cambium), resin and pericardia.
The word "herb" is pronounced in the
commonwealth, but is common among North American speakers and those
from other regions where h-dropping occurs. In botany, the word
"herb" is also used as a synonym for "herbaceous plant"
I take this article from this link.
https://en.wikipedia.org/wiki/Herb#Medicinal_herbs