Hypericum

Hypericum is a genus of flowering plants in the family Hypericaceae, including St John’s wort and species cultivated for their flowers and foliage.

Hypericaceae: Hypericaceae is a family of flowering plants that includes the genus Hypericum. Hypericum is the largest and best-known genus in this family.
Hypericum perforatum morphology: The morphology of Hypericum perforatum includes opposite leaves with translucent glands and yellow flowers with dark glandular dots. These features are among the clearest field marks for a well-known species.
Herbal medicine: Herbal medicine uses plants or plant extracts to prevent or treat health conditions. Extracts of Hypericum perforatum have a long history of medicinal use.
Carl Linnaeus: Carl Linnaeus was a Swedish botanist who established the binomial system of naming species. His classification system underlies the scientific names used for Hypericum species.
St. John's wort: St. John's wort is the common name for Hypericum perforatum, a yellow-flowered perennial herb. This species is the genus's most familiar medicinal and cultural representative.
Hypericum perforatum reproduction: Hypericum perforatum reproduces by seeds and vegetative spread through underground rhizomes. Both pathways help explain its persistence and spread beyond cultivation.
Major depressive disorder: Major depressive disorder is a mood disorder marked by persistent low mood or loss of interest and other symptoms. St. John's wort preparations have been studied as treatments for mild to moderate depression.
Botanical nomenclature: Botanical nomenclature is the formal system for naming plants and fungi. The genus name and its species names follow its international rules.
Hypericum perforatum: Hypericum perforatum is a perennial herb native to Eurasia and widely naturalized elsewhere. Its diagnostic features anchor many descriptions of the genus.
Hypericin: Hypericin is a red, light-sensitive pigment found in some Hypericum species. This compound is associated with dark glands visible on several species.

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