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  2. Hypericum perforatum - Wikipedia

    en.wikipedia.org/wiki/Hypericum_perforatum

    Hypericum perforatum, commonly known as St John's wort (sometimes perforate St John's wort or common St John's wort), is a flowering plant in the family Hypericaceae.It is a perennial plant that grows up to 1 metre (3 ft 3 in) tall, with many yellow flowers that have clearly visible black glands around their edges, long stamens (male reproductive organs), and three pistils (female reproductive ...

  3. Hypericum - Wikipedia

    en.wikipedia.org/wiki/Hypericum

    The beetles Chrysolina quadrigemina, Chrysolina hyperici and the St. John's-wort root borer (Agrilus hyperici) feed on common St. John's-wort (H. perforatum) plants and have been used for biocontrol where the plant has become an invasive weed. [13] Hypericum species are the only known food plants of the caterpillar of the treble-bar, a species ...

  4. Hypericum androsaemum - Wikipedia

    en.wikipedia.org/wiki/Hypericum_androsaemum

    Hypericum androsaemum, the shrubby St. John's wort, is a flowering plant in the family Hypericaceae. Commonly called tutsan or sweet-amber , the species is cultivated as an ornamental plant because of its striking red-tinted foliage, bright yellow petals, and its large clusters of fruit.

  5. List of herbs with known adverse effects - Wikipedia

    en.wikipedia.org/wiki/List_of_herbs_with_known...

    St John's wort: Tipton's weed, Klamath weed Hypericum perforatum: Photosensitization, [3] [15] GI disturbances, "allergic reactions, fatigue, dizziness, confusion, dry mouth" [15] Valerian: garden valerian, garden heliotrope, all-heal Valeriana officinalis "drowsiness, GI upset, headache, palpitations, insomnia", [3] oversedation ...

  6. Hypericum prolificum - Wikipedia

    en.wikipedia.org/wiki/Hypericum_prolificum

    Hypericum prolificum is a shrub growing up to 2 m (6 ft 7 in) tall with elliptic to oblanceolate leaves up to 70 mm (2.8 in) long and 15 mm (0.59 in) broad. [5] The flowerheads have between 1 and 9 flowers, each 15–30 mm (0.59–1.18 in) across with 5 golden yellow petals and numerous stamens. [5]

  7. List of plants used in herbalism - Wikipedia

    en.wikipedia.org/wiki/List_of_plants_used_in...

    St. John's wort: Widely used within herbalism for depression. Evaluated for use as an antidepressant, but with ambiguous results. [89] [90] Hyssopus officinalis: Hyssop: It is purported for digestive and intestinal problems, and for respiratory problems. [91]

  8. Hypericum punctatum - Wikipedia

    en.wikipedia.org/wiki/Hypericum_punctatum

    Hypericum punctatum, the spotted St. John's wort, is a perennial herb native to North America. [2] The yellow-flowered herb occurs throughout eastern North America into southern Canada. The process of microsporogenesis carried out by this plant is prone to errors in chromosomal segregation. It has a diploid number of 14 or 16.

  9. Hypericum frondosum - Wikipedia

    en.wikipedia.org/wiki/Hypericum_frondosum

    Hypericum frondosum, the cedarglade St. Johnswort or golden St. John's wort, is a species of flowering plant in the St. John's wort family, Hypericaceae. [ 1 ] [ 2 ] [ 3 ] It is native to the central and southeastern United States in dry, rocky habitats.