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Hypericum is a genus of the flowering plant family Clusiaceae (or formerly of the Hypericaceae, which has become a 'nomen conservandum' - a name to be retained but no longer in use).
One of the best known species is St. John's wort (Hypericum perforatum) which is an important antidepressant as well as being a noxious weed in many areas.
All members of the genus may be referred to as "St. John's worts" or St.John's-worts, though they are also commonly just called Hypericums.
Some species are used as ornamentals and have large, showy flowers.
ITIS recognises about 60 species, and there are also hybrids and cultivars.
Major species
 Trailing St. John's-wort ( Hypericum humifusum) - Hypericum anagalloides (commonly known as Bog St John's wort or Tinker's Penny) is a mat-forming annual with elliptic to obovate leaves and yellow to pinkish-orange flowers. It is indigenous to western North America.
- Hypericum calycinum (commonly known as Rose of Sharon) is a woody shrub to about 1m tall, with much larger flowers than most other species, 3-5 cm diameter. It is indigenous to Europe. It is a popular garden shrub, compact, growing to about 1m tall and 1-2m wide but usually smaller. There are many named cultivars and hybrids derived from it, e.g. Hypericum 'Hidcote', in the photograph, top right.
- Hypericum formosum (commonly known as Western St John's wort or Slender St John's wort) is an erect perennial with ovate to obovate leaves and deep yellow, black-dotted flowers. It is indigenous to western North America.
- Hypericum hirsutum: Hairy St.John's-wort
- Hypericum humifusum: Trailing St.John's-wort
- Hypericum maculatum: Imperforate St;John's-wort
- Hypericum montanum: Pale St. John's-wort
- Hypericum perforatum (also commonly known as Common St John's wort, Perforate St.John's-wort, Goat Weed, or Klamath Weed) is a rhizomatous perennial herb with ovate to linear leaves and deep yellow flowers. see photo (http://plants.usda.gov/cgi_bin/plant_profile.cgi?symbol=HYPE). It is indigenous to Europe, West Asia, and North Africa.
- Hypericum pulchrum: Slender St.John's-wort
- Hypericum tetrapterum: Square-stalked St.John's-wort
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Example Usage of Hypericum |
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AManzoori: @TalindaB hey Talinda, try a herb named "Hypericum Perforatum" if you could, it's helpful for meningitis, I hope you'll see this message! |
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barbaracohen: Hypericum BERRIES are now in the store for the Christmas holiday. Hypericum BERRIES look like a fruitful clusters... http://fb.me/72t51nO |
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OscarSada: @NameCheap Holly (Hypericum) Berries |
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