World Species : Hypericum perforatum (common St Johnswort; common St. John's wort; Klamath weed; klamathweed; common St. Johnswort; St. John's wort; St. Johnswort)

Plantae > Tracheophyta > Magnoliopsida > Malpighiales > Hypericaceae > Hypericum > Hypericum perforatum

Hypericum perforatum (common St Johnswort; common St. John's wort; Klamath weed; klamathweed; common St. Johnswort; St. John's wort; St. Johnswort)

Contents

Synonyms: Hypericum assurgens (homotypic); Hypericum perforatum f. brevispathum; Hypericum perforatum f. lucidum; Hypericum perforatum f. microphyllum; Hypericum vulgare

Wikipedia Abstract

Hypericum perforatum, known as perforate St John's-wort, common Saint John's wort and St John's wort (/ˈsɪndʒənzwɜːrt/ SIN-jənz-wurt), is a flowering plant in the family Hypericaceae. The common name "St John's wort" may be used to refer to any species of the genus Hypericum. Therefore, Hypericum perforatum is sometimes called "common St John's wort" or "perforate St John's wort" in order to differentiate it. It is a medicinal herb with antidepressant activity and potent anti-inflammatory properties as an arachidonate 5-lipoxygenase inhibitor and COX-1 inhibitor.

View Wikipedia Record: Hypericum perforatum

Infraspecies

Hypericum perforatum chinense
Hypericum perforatum latifolium
Hypericum perforatum perforatum (Common St. Johnswort)
Hypericum perforatum songaricum
Hypericum perforatum var. angustifolium
Hypericum perforatum var. perforatum

Invasive Species

View ISSG Record: Hypericum perforatum

Attributes

Allergen Potential ^[1]	Medium-Low

Bee Flower Color ^[2]	UV-Green
Flower Color ^[2]	Yellow

Dispersal Mode ^[5]	Anemochory
Edible ^[3]	May be edible. See the Plants For A Future link below for details.
Flower Type ^[3]	Hermaphrodite
Hazards ^[3]	Skin contact with the sap, or ingestion of the plant, can cause photosensitivity in some people;
Lifespan ^[3]	Perennial
Pollinators ^[3]	Bees, Flies, Bats
Scent ^[3]	The whole plant, especially when in bloom, gives off a most unpleasant smell when handled.
Structure ^[6]	Herb
Usage ^[3]	Yellow, gold and brown dyes are obtained from the flowers and leaves; A red is obtained from the flowers after acidification; A red dye is obtained from the whole plant when infused in oil or alcohol; A yellow is obtained when it is infused in water; The plant is said to contain good quantities of tannin, though exact figures are not available;

Height ^[3]	35 inches (0.9 m)
Width ^[3]	24 inches (0.6 m)

Light Preference ^[4]	Mostly Sunny
Soil Acidity ^[4]	Neutral
Soil Fertility ^[4]	Intermediate
Soil Moisture ^[4]	Mostly Dry

View Plants For A Future Record : Hypericum perforatum

Providers

Pollinated by
Chrysotoxum cautum	^[8]
Helina reversio	^[8]
Panurgus calcaratus (Spurred Panurgus)	^[8]
Parasyrphus annulatus	^[8]
Platycheirus parvus	^[8]

Consumers

Parasitized by
Erysiphe hyperici	^[10]
Melampsora hypericorum	^[10]

External References

USDA Plant Profile

NatureServe Explorer

Citations

Attributes / relations provided by
♦ ¹Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
♦ ²Arnold SEJ, Faruq S, Savolainen V, McOwan PW, Chittka L, 2010 FReD: The Floral Reflectance Database — A Web Portal for Analyses of Flower Colour. PLoS ONE 5(12): e14287.
♦ ³Plants For A Future licensed under a Creative Commons Attribution 4.0 License
♦ ⁴ECOFACT 2a Technical Annex - Ellenberg’s indicator values for British Plants, M O Hill, J O Mountford, D B Roy & R G H Bunce (1999)
♦ ⁵Paula S, Arianoutsou M, Kazanis D, Tavsanoglu Ç, Lloret F, Buhk C, Ojeda F, Luna B, Moreno JM, Rodrigo A, Espelta JM, Palacio S, Fernández-Santos B, Fernandes PM, and Pausas JG. 2009. Fire-related traits for plant species of the Mediterranean Basin. Ecology 90: 1420.
Paula S. & Pausas J.G. 2013. BROT: a plant trait database for Mediterranean Basin species. Version 2013.06.
♦ ⁶Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
♦ ⁷Biological Records Centre Database of Insects and their Food Plants
♦ ⁸Ecology of Commanster
♦ ⁹Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P. ScaleNet 4 November 2009
♦ ¹⁰Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.

Abstract provided by DBpedia licensed under a Creative Commons License

Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0