American ginseng

Name: American ginseng
Scientific name: Panax quinquefolius

Possible uses: tones skin and muscles, appetite stimulant, digestion, impotence, demulcent, tonic, increase mental efficiency, physical performance, adapting to high or low temperature, stress, cancer preventative, fatigue

Part of plant used: roots

Possible side effects: increase blood pressure

This herb is ideally to be used by elderly since it's helps them more.  It's illegal to harvest the roots before the berries ripen (turns a reddish color).  The full and exact knowledge of this herbal is still in dispute.

Sources

Refer back to the Sources post to see the exact books that I used!

Eastern/Central Medicinal Plants and Herbs

Taylor's Guide in Herbs

Green Pharmacy

Articles
Medical News Today
WebMD
Very Well Health

Scholarly Articles
Chemical analysis of Panax quinquefolius (North American ginseng): A review.
Chemical and pharmacological studies of saponins with a focus on American ginseng.
American ginseng: potential structure-function relationship in cancer chemoprevention.
Red American ginseng: ginsenoside constituents and antiproliferative activities of heat-processed Panax quinquefolius roots.