|LC control no.||sh 88022845
|Topical heading||Hypericum perforatum
|Variant(s)||Common Saint Johnswort
Perforate Saint Johnswort
Saint Johns-wort, Common
Saint Johnswort, Common
St. Johnswort, Common
|Found in||Katzenstein, L. Secrets of St. John's wort, c1998: p. 17.
St. John's wort : the mood enhancer, c1997: index.
USDA Plants Database, June 18, 2008: name search (Hypericum perforatum, Common St. Johnswort)
Interactive Flora of NW Europe website, June 18, 2008: species search (Hypericum perforatum, Perforate St. John"s-wort)
Wikipedia online, June 25, 2008 (St. John's wort; used alone refers to the species Hypericum perforatum; also known as: Tipton's Weed or Klamath weed; Hypericum perforatum is also sometimes called: Common St. John's wort to differentiate it from other species of Hypericum)