Hypericum lanuginosum

Last updated

Hypericum lanuginosum
Hypericum lanuginosum.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Hypericaceae
Genus: Hypericum
Section: Hypericum sect. Adenosepalum
Species:
H. lanuginosum
Binomial name
Hypericum lanuginosum
Synonyms
  • Hypericum gracile
  • Hypericum lanuginosum

subsp. gracile

  • Hypericum lanuginosum subsp. millepunctatum
  • Hypericum lanuginosum var. pestalozzae [2]
  • Hypericum lanuginosum var. scabrellum
  • Hypericum lanuginosum var. β gracile
  • Hypericum lanuginosum var. lanuginosum [3]
  • Hypericum pestalozzae
  • Hypericum scabrellum

Hypericum lanuginosum, or downy St. John's wort, [4] is a perennial herb, a flowering plant in the St. John's wort family Hypericaceae.

Contents

Description

The species grows from 10 to 80 centimeters tall. It has a woody rootstock with few stems. Its leaves have dense whitish veins and are subglabrous on both surfaces. The stems are green and terete and have 2-4 lined internodes. The dimensions of the leaves are 15–60 mm by 5–25 mm. Its flowers are 15–20 mm in diameter and are rounded. [5]

Distribution and habitat

Hypericum lanuginosum is found in Sinai, Southern Turkey, Western Syria, Lebanon, Israel, Jordan, and Cyprus. [6] Its habitat is in moist, shady areas, usually by rocks, 0–2400 meters from sea level. [7]

Related Research Articles

<i>Hypericum perforatum</i> Flowering plant in the St Johns wort family Hypericaceae

Hypericum perforatum, commonly known as St John's wort, is a flowering plant in the family Hypericaceae. It is a perennial plant that grows up to one meter tall, with many yellow flowers that have clearly visible black glands around their edges, long stamens, and three pistils. Probably a hybrid between the closely related H. attenuatum and H. maculatum that originated in Siberia, the species is now found worldwide. It is native to temperate regions across Eurasia and North Africa, and has been introduced to East Asia, Australia, New Zealand, and parts of North and South America. In many areas where it is not native, H. perforatum is considered a noxious weed. It densely covers open areas to the exclusion of native plants, and is poor grazing material. As such, methods for biocontrol have been introduced in an attempt to slow or reverse the spread of the species.

<i>Hypericum</i> Genus of flowering plants known as St. Johns worts

Hypericum is a genus of flowering plants in the family Hypericaceae. The genus has a nearly worldwide distribution, missing only from tropical lowlands, deserts and polar regions. Many Hypericum species are regarded as invasive species and noxious weeds. All members of the genus may be referred to as St. John's wort, and some are known as goatweed. The white or pink flowered marsh St. John's worts of North America and eastern Asia are generally accepted as belonging to the separate genus TriadenumRaf.

<i>Hypericum tetrapterum</i> Species of flowering plant in the family Hypericaceae

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 androsaemum</i> Species of flowering plant in the St Johns wort family Hypericaceae

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. Cultivars like 'Albury Purple' and 'Golden Tutsan' which have leaves with more pronounced purple and golden coloring, respectively.

<i>Hypericum mutilum</i> Species of flowering plant in the St Johns wort family Hypericaceae

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. The oval green leaves are one or two centimeters long and are covered in tiny glands. The inflorescence is a compound cyme of tiny flowers. H. mutilum subsp. mutilum and subsp. boreale have a diploid number of 16, and H. mutilum subsp. boreale can have a diploid number of 18.

<i>Hypericum kalmianum</i> Species of flowering plant in the St Johns wort family Hypericaceae

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

<i>Hypericum punctatum</i> Species of flowering plant

Hypericum punctatum, the spotted St. John's wort, is a perennial herb native to North America. 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. Insects are attracted to the plant's pollen and the hypericin in the plant's leaves is toxic to mammals.

<i>Hypericum japonicum</i> Species of flowering plant in the St Johns wort family Hypericaceae

Hypericum japonicum, known as matted St. John's-wort, is an annual herbaceous flowering plant in the St. John's wort family Hypericaceae, in Hypericum sect. Trigynobrathys.

<i>Hypericum suffruticosum</i> Species of flowering plant in the St Johns wort family Hypericaceae

Hypericum suffruticosum, known as pineland St. John's-wort, is a species of flowering plant in the St. John's wort family, Hypericaceae. It is native to the Southeastern United States.

<i>Hypericum majus</i> Species of flowering plant

Hypericum majus, the greater Canadian St. John's wort, is a perennial herb native to North America. The specific epithet majus means "larger". The plant has a diploid number of 16.

<i>Hypericum tetrapetalum</i> Species of flowering plant in the St Johns wort family Hypericaceae

Hypericum tetrapetalum, the fourpetal St. Johnswort, is a species of flowering plant in the St. John's wort family, Hypericaceae. It is found in the Southeastern United States and Cuba. It was first described by Jean-Baptiste Lamarck in 1797.

<i>Hypericum lancasteri</i> Species of flowering plant in the St Johns wort family Hypericaceae

Hypericum lancasteri, known as Lancaster's St. John's wort or as zhan e jin si tao in Chinese, is a species of flowering plant in the St. John's wort family Hypericaceae. The species has been awarded the Royal Horticultural Society's Award of Garden Merit.

Hypericum myrtifolium, the myrtleleaf St. Johnswort, is a species of flowering plant in the St. John's wort family, Hypericaceae. It is endemic to the Southeastern United States. It was first described by Jean-Baptiste Lamarck in 1797.

<i>Hypericum oblongifolium</i> Species of flowering plant

Hypericum oblongifolium, known as Pendant St. John's wort, is a species of flowering plant in Hypericumsect. Ascyreia.

<i>Hypericum przewalskii</i> Species of flowering plant in the St Johns wort family Hypericaceae

Hypericum przewalskii, commonly called Przewalski's St. John's wort, is a flowering plant in Hypericumsect. Roscyna that is native to China.

<i>Hypericum frondosum</i> Species of flowering plant in the St Johns wort family Hypericaceae

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. It is native to the central and southeastern United States in dry, rocky habitats.

<i>Hypericum aucheri</i> Species of flowering plant in the St Johns wort family Hypericaceae

Hypericum aucheri, also known as Koramanotu in Turkish, is a herbaceous perennial flowering plant in the St. John's wort family Hypericaceae.

<i>Hypericum coris</i> Species of flowering plant in the St Johns wort family Hypericaceae

Hypericum coris, the heath-leaved St. John's wort, also called yellow coris, is a species of flowering plant in the family Hypericaceae, and is the type species of sect. Coridium. It is a low shrub, and it is found in Switzerland and northwestern Italy. The species has been a popular garden plant since the 18th century, valued for its long flowering period and for how well it adapts to cultivation.

Hypericum harperi, the sharplobe St. Johnswort or Harper's St. John's wort, is a perennial flowering plant in the family Hypericaceae. It is an aquatic herb native to southeast North America. H. harperi has a diploid chromosome number of 24.

References

  1. Tropicos.org. Missouri Botanical Garden. 27 Sep 2016 Hypericum Lanuginosum
  2. TUBIVES Turkish Taxonomy
  3. Flora of Cyprus
  4. Royal Horticultural Society
  5. Hypericum MySpecies
  6. Studies in the genus Hypericum L. (Guttiferae) 6. Sections 20. Myriandra to 28. Elodes
  7. Flora of Israel Online