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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 olympicum - Wikipedia

    en.wikipedia.org/wiki/Hypericum_olympicum

    Hypericum olympicum, commonly known as the Mount Olympus St. John's wort, [2] [Note 1] is a species of flowering plant in the family Hypericaceae found in the Balkans and Turkey and introduced to western Europe.

  4. 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 ...

  5. Hypericaceae - Wikipedia

    en.wikipedia.org/wiki/Hypericaceae

    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.

  6. Hypericum calycinum - Wikipedia

    en.wikipedia.org/wiki/Hypericum_calycinum

    The underside of the leaves is a blue-green color and in the fall, the leaves take on a purple color. [5] The flowers are 3–5 cm in diameter, a rich yellow, with five petals and numerous yellow stamens. Its flowers can be described as "rose-like" and tend to be single or in units of two or three, [4] flowering in June to September. [6]

  7. 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.

  8. Chrysolina hyperici - Wikipedia

    en.wikipedia.org/wiki/Chrysolina_hyperici

    Chrysolina hyperici is most often known in English by the common names "St. Johnswort Beetle", "Saint John's Wort Beetle" or close variations. [3] In the United States C. hyperici is also known by the common name "klamathweed beetle" from one of the common names of Hypericum perforatum.

  9. Hypericum densiflorum - Wikipedia

    en.wikipedia.org/wiki/Hypericum_densiflorum

    Hypericum densiflorum, also known as bushy St. John's wort or dense St. John's wort, is a perennial herb in the flowering plant family Hypericaceae native to North America. The specific epithet densiflorum is Latin , meaning "densely flowered", referring to the many-flowered cymes .