For *Echinacea angustifolia*, which part is harvested and noted for high active compounds?
Answer
Root
A key aspect of understanding *Echinacea* products is recognizing that different species yield different benefits depending on the harvested plant part, as the concentration of bioactive compounds varies throughout the plant structure. Specifically, *Echinacea angustifolia* is traditionally recognized for its strength, and the component primarily utilized and studied from this species is the root. The text highlights that the root of *E. angustifolia* is associated with containing a high concentration of the active compounds that researchers analyze. Conversely, the aerial parts (leaves and flowers) of *E. purpurea* are more commonly used for modern clinical assessments.
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