An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Plant Hypericum perforatum (Clusiaceae)

Common Names
Common St. Johnswort; Hypericum; Klamath Weed; St. John's-wort; Goatweed
How this plant is used
Medicinal

Select a Results View:

View the list of ubiquitous chemicals
List of plant chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Activity Count Plant Part Low Parts Per Million High Parts Per Million Standard Deviation Reference
PSEUDOHYPERICIN 2 Leaf not available not available not available Duke, 1992 *
PSEUDOHYPERICIN 2 Plant not available not available not available Duke, 1992 *
PSEUDOHYPERICIN 2 Shoot not available 40.0 not available Duke, 1992 *
PSEUDOHYPERICODIHYDROANTHRONE 0 Plant not available not available not available Watt, J.M. and Breyer-Brandwijk, M.G. 1962. The Medicinal and Poisonous Plants of Southern and Eastern Africa. E. & S. Livingstone, Ltd. Edinburg & London. 1457 pp.
PYROGALLOL 23 Plant not available not available not available Duke, 1992 *
QUERCETIN 176 Flower not available 1000.0 0.94 Duke, 1992 *
QUERCETIN 176 Leaf not available not available not available Duke, 1992 *
QUERCETIN 176 Plant not available 20000.0 1.00 Duke, 1992 *
QUERCETIN 176 Shoot not available not available not available Duke, 1992 *
QUERCETIN 176 Stem not available not available not available Duke, 1992 *
QUERCETIN-3-O-GLUCURONIDE 0 Plant not available not available not available Duke, 1992 *
QUERCETIN-3-O-GLUCURONIDE 0 Shoot not available not available not available Duke, 1992 *
QUERCETIN-3-O-XYLOSIDE 0 Plant not available not available not available Duke, 1992 *
QUERCETIN-3-O-XYLOSIDE 0 Shoot not available not available not available Duke, 1992 *
QUERCITRIN 44 Flower not available 3380.0 not available Duke, 1992 *
QUERCITRIN 44 Leaf not available not available not available Duke, 1992 *
QUERCITRIN 44 Plant not available not available not available Duke, 1992 *
QUERCITRIN 44 Shoot 3000.0 5240.0 -1.00 Duke, 1992 *
RESORCYNOL 0 Plant not available not available not available Duke, 1992 *
RHODAN 0 Plant not available not available not available Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp.
View the list of ubiquitous chemicals
List of plant activities.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Activity Chemical Count Reference
Antitumor (Pancreas) 3 Duke, 1992 *
Antitumor (Prostate) 3 Duke, 1992 *
Antitumor (Skin) 6 Duke, 1992 *
Antitumor (Stomach) 3 Chiang, L. C., Chiang, W., Chang, M. Y., Ng, L. T., Lin, C. C. 2003. Antileukemic activity of selected natural products in Taiwan. Am J Chin Med, 31(1):37-46.
Antitumor (Thyroid) 1 Duke, 1992 *
Antitumor-Promoter 10 Cancer Research, 48: 5941.
Antitumor-Promoter? 1 Duke, 1992 *
Antitussive 5 Duke, 1992 *
Antiulcer 21 Duke, 1992 *
Antiulcerogenic 1 Duke, 1992 *
Antivaccinia 1 Economic & Medicinal Plant Research, 5: 207.
Antivaricose 1 Duke, 1992 *
Antiviral 36 Duke, 1992 *
Antiwrinkle 2 Martindale's 28th
Antixerophthalmic 1 Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp.
Antiyeast 2 Duke, 1992 *
Anxiolytic 3 Williamson, E. M. and Evans, F. J., Potter's New Cyclopaedia of Botanical Drugs and Preparations, Revised Ed., Saffron Walden, the C. W. Daniel Co., Ltd., Essex UK, 362 pp, 1988, reprint 1989.
Aphidifuge 1 Duke, 1992 *
Apoptotic 12 Duke, 1992 *
Aromatase-Inhibitor 2 Journal of Medicinal Food 2: 235.1999.