ginseng - References - Wild ginseng
Wild ginseng is ginseng that has not been planted and cultivated domestically, rather it is that which grows naturally and is harvested from wherever it is found to be growing. It is considered to be superior to field farmed ginseng by various authorities, and it has been shown to contain higher levels of ginsenoside. Wild ginseng is relatively rare and even increasingly endangered, due in large part to high demand for the product in recent years, which has led to the wild plants being sought out and harvested faster than new ones can grow (it requires years for a ginseng root to reach maturity). Wild ginseng can be either Asian or American and can be processed to be red ginseng.

There are woods grown American ginseng programs in Maine, Tennessee, Virginia and North Carolina. http://www.state.tn.us/environment/na/ginseng.shtml

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• _Hong B; Ji YH; Hong JH; Nam KY; Ahn TY A double-blind crossover study evaluating the efficacy of korean red ginseng in patients with erectile dysfunction: a preliminary report.
  J Urol. 2002; 168(5):2070-3 (ISSN: 0022-5347)Department of Urology_ - Hong B; Ji YH; Hong JH; Nam KY; Ahn TY A double-blind crossover study evaluating the efficacy of korean red ginseng in patients with erectile dysfunction: a preliminary report.
  J Urol. 2002; 168(5):2070-3 (ISSN: 0022-5347)Department of Urology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea

• _de Andrade E; de Mesquita AA; Claro Jde A; de Andrade PM; Ortiz V; Paranhos M; Srougi M Study of the efficacy of Korean Red Ginseng in the treatment of erectile dysfunction.
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  Sector of Sexual Medicine, Division of Urological Clinic of Sao Paulo University, Sao Paulo, Brazil.
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