St John's wort (disambiguation)

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Saint-John's-wort or variants (named after John the Baptist) may refer to:

John the Baptist major religious figure

John the Baptist was a Jewish itinerant preacher in the early first century AD. John is revered as a major religious figure in Christianity, Islam, the Bahá'í Faith, and Mandaeism. He is called a prophet by all of these faiths, and is honored as a saint in many Christian traditions. Other titles for John include John the Forerunner in Eastern Christianity and "the prophet John (Yaḥyā)" in Islam. To clarify the meaning of "Baptist", he is sometimes alternatively called John the Baptizer.

<i>Hypericum</i> genus of plants

Hypericum is a genus of flowering plants in the family Hypericaceae. Hypericum is unusual for a genus of its size because a worldwide taxonomic monograph was produced for it by Norman Robson. Robson recognizes 36 sections within Hypericum.

<i>Hypericum perforatum</i> species of plant

Hypericum perforatum, known as perforate St John's-wort, common Saint John's wort and St John's wort, is a flowering plant in the family Hypericaceae. Although used as a medicinal herb with possible antidepressant activity, high-quality clinical evidence for such effects is limited. The plant is poisonous to livestock.

<i>Hypericum pulchrum</i> species of plant

Hypericum pulchrum is a flowering plant in the family Hypericaceae, commonly known as slender St John's-wort. It is native to Western Europe.

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Hypericaceae family of plants

Hypericaceae is a plant family in the order Malpighiales, comprising six to nine genera and up to 700 species, and commonly known as the St. John’s wort family. Members are found throughout the world apart from extremely cold or dry habitats. Hypericum and Triadenum occur in temperate regions but other genera are mostly tropical.

Hyperforin chemical compound

Hyperforin is a phytochemical produced by some of the members of the plant genus Hypericum, notably Hypericum perforatum. Hyperforin is attributed to provide the main antidepressant effect of St. John's wort, although there is limited clinical evidence that hyperforin and St. John's wort have any effect on depression.

<i>Hypericum tetrapterum</i> species of plant

Hypericum tetrapterum is a herbaceous perennial plant species in the flowering plant family Hypericaceae. Its common names include St. Peter's wort, Peterwort, square stemmed St. John's wort, and square stalked St. John's wort.

<i>Hypericum canariense</i> species of plant

Hypericum canariense is a species of Hypericum known by the common name Canary Islands St. John's wort. It is the sole member of Hypericum sect. Webbia.

<i>Hypericum montanum</i> species of plant

Hypericum montanum is a plant species in the genus Hypericum commonly known as pale St. John's-wort or mountain St. John's wort. It is native to Eurasia and Morocco in North Africa.

<i>Hypericum forrestii</i> species of plant

Hypericum forrestii is a species of flowering plant in the family Hypericaceae native to China and Myanmar. It is known as Forrest's tutsan and Forrest's St. John's wort. It was named in honour of George Forrest (1873-1932), who discovered it.

<i>Hypericum dolabriforme</i> species of plant

Hypericum dolabriforme, the straggling St. Johnswort or glade St. John's-wort, is a species of flowering plant in the St. John's wort family native to the United States.

<i>Hypericum sphaerocarpum</i> species of plant

Hypericum sphaerocarpum, the roundseed St. Johnswort or barrens St. John's wort, is a species of flowering plant in the St. John's wort family. It is native to the Eastern United States where it is primarily found in the Midwest and Mid-South as well as Ontario, Canada. Its preferred habitat is dry, calcareous glades and prairies.

<i>Hypericum aegypticum</i> species of plant

Hypericum aegypticum, also known as Egyptian Saint John's wort, is an evergreen shrub or shrublet in the section Adenotrias of the genus Hypericum. Less frequently, dwarf Saint John's wort is used as an alternate name.

<i>Hypericum bupleuroides</i> species of plant

Hypericum bupleuroides is a species of perennial herb in the St. John's wort family, Hypericaceae. It is the sole species in the section Hypericum sect. Bupleuroides.

<i>Hypericum kalmianum</i> species of plant

Hypericum kalmianum, commonly called Kalm's St. Johns wort or Kalm's St. Johnswort, is a small, yellow-flowering shrub native to the Great Lakes region in the northern United States and southern Canada. It is in the St. John's wort family, Hypericaceae. Hypericum kalmianum was named after its discoverer, Swedish botanist Pehr Kalm (1715-1779).

<i>Hypericum swinkianum</i> species of plant

Hypericum swinkianum, known as Swink's St. John's wort, is a shrub in the St. John's wort family. It was named after Chicago Region botanist Floyd Swink (1921-2000).

Hypericum edisonianum, known as Arcadian St. John's wort, Edison's St. John's wort, and Edison ascyrum, is a species of flowering plant in the St. John's wort family, Hypericaceae. It is endemic to Florida.

<i>Hypericum japonicum</i> species of plant

Hypericum japonicum, also known as matted St. John's-wort or Japanese St. John's wort, is an annual herb in Hypericum sect. Trigynobrathys.

<i>Hypericum lancasteri</i> species of plant

Hypericum lancasteri, known as Lancaster's St. John's wort or as zhan e jin si tao in Chinese, is a species of shrub in Hypericum sect. Ascyreia.

<i>Hypericum gymnanthum</i> species of plant

Hypericum gymnanthum, the small-flowered St. John’s wort or clasping leaf St. John's wort, is a species of flowering plant in the St. Johnswort family native to wet woods, bogs, and ditches of the eastern United States and Guatemala. It has been introduced to Poland.