Hypericum
Hypericum is a genus of the Clusiaceae (or sometimes the Hypericaceae). 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" 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 Hypericum species
Hypericum perforatum (also commonly known as Common 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). It is indigenous to Europe, West Asia, and North Africa.
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 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.
Referenced By
Clusiaceae | Hypericum perforatum | List of common homeopathic remedies | List of garden plants | List of homeopathic remedies | St. John's Wort | St John's Wort | St Johns Wort
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