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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 ...
St. John's Wort - Can refer to any species of Hypericum. Stonewort - A general name for plants of the genus Chara and Nitella; water horsetail. St. Paul's Wort – species of the genus Sigesbeckia, such as Eastern St Paul's-wort, Sigesbeckia orientalis. [4] St. Peter's Wort - Any plant of the genus Ascyrum, such as Hypericum quadrangulum.
Artemisia vulgaris, commonly known as mugwort, common mugwort, or wormwood, [note 1] is a species of flowering plant in the daisy family Asteraceae. It is one of several species in the genus Artemisia commonly known as mugwort, although Artemisia vulgaris is the species most often called mugwort. Mugworts have been used medicinally and as ...
Other sources say mugwort is derived from the Old Norse muggi (meaning "marsh") and German wuertz (wort in English, originally meaning "root"), which refers to its use since ancient times to repel insects, especially moths. [3] The Old English word for mugwort is mucgwyrt where mucg-, could be a variation of the Old English word for "midge": mycg.
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.
The sepals are either unequal or subequal, are broadly imbricate, and are paler than the leaves. They are 6–16 by 3–12 millimetres (0.24 in–0.63 in × 0.12 in–0.47 in), and are broadly ovate to lanceolate, and have a rounded base. They are entire, large, pointed, and persistent in fruit. [9] They have 9–15 veins that are branching.
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.
Hypericum mutilum is a species of St. John's wort known by the common name dwarf St. John's wort. It is native to parts of North America and is present in other parts as an introduced species . It is an annual or perennial herb taking a multibranched erect form up to about 60 centimeters tall.