Epilobium parviflorum
{{short description|Species of flowering plant in the willowherb family Onagraceae}}
{{Speciesbox
|image = Epilobium parviflorum kz04.jpg
|genus = Epilobium
|species = parviflorum
|authority = (Schreb.) Schreb.
|synonyms =
- Chamaenerion parviflorum
- Epilobium intermedium {{small|Mérat}}{{sfn|Strgulc Krajšek|Šegedin|Jogan|2009|p=162}}
}}
Epilobium parviflorum, commonly known as the hoary willowherb{{BSBI 2007 |access-date=2014-10-17 }} or smallflower hairy willowherb,{{PLANTS|id=EPPA5|taxon=Epilobium parviflorum|accessdate=18 January 2016}} is a herbaceous perennial plant of the family Onagraceae.
Etymology
The genus name derives from the Greek words "epi" meaning "upon" and "lobos" meaning "lobe", with reference to position of the petals above the ovary.{{cite web |title=Definition of EPILOBIUM |url=https://www.merriam-webster.com/dictionary/epilobium |website=www.merriam-webster.com |access-date=30 August 2021 |language=en}} The specific Latin name of "parviflorum" means "small flowers".
Description
File:Epilobium parviflorum korseby.jpeg
The biological form of Epilobium parviflorum is hemicryptophyte scapose,Pignatti S. - Flora d'Italia – Edagricole – 1982. Vol. II, pag. 155 as its overwintering buds are situated just below the soil surface and the floral axis is more or less erect with a few leaves.
Epilobium parviflorum reaches on average {{convert|30|-|80|cm}} in height. The stem is erect and densely covered with hairs, especially in the lower part. The leaves are opposite, unstalked but not amplexicaul, lanceolate and toothed, rounded at the base, {{convert|4|-|10|cm}} long. The tiny flowers are pale pink or pale purple, {{convert|6|-|7|mm}} in diameter, with four petals, eight stamens and a 4-lobed stigma. Flowering occurs from June to August in the Northern Hemisphere. The hermaphroditic flowers are either self-fertilized (autogamy) or pollinated by insects (entomogamy).[http://www.pfaf.org/user/Plant.aspx?LatinName=Epilobium+parviflorum Pfaf.org] Fruit is a three-to seven-centimeter long capsule containing very small black seeds (about 1 mm long), with white fibres that allow the dispersal by wind. This species is quite similar to Epilobium hirsutum, but the flowers are much smaller.[http://www.habitas.org.uk/flora/species.asp?item=3544 Flora of Northern Ireland]
Epilobium parviflorum is sometimes mistaken for E. roseum, whose clavate stigma contrasts with the 4-lobed stigma of E. parviflorum. More obviously, the undersides of and fully developed leaves of E. parviflorum are covered with up to {{convert|0.5|mm|in}} long unglandular trichomes. Trichomes of E. roseum are always shorter at up to {{convert|0.3|mm|in}}.{{sfn|Strgulc Krajšek|Šegedin|Jogan|2009|p=163}}
Distribution
It is one of the most widespread species in its genus.{{sfn|Strgulc Krajšek|Šegedin|Jogan|2009|p=163}} It plant occurs in most of Europe, including Britain, from Sweden to Northern Africa and Western Asia up to Kashmir, in United States and Canada.[https://plants.usda.gov/java/profile?symbol=EPPA5 Plants.usda][http://luirig.altervista.org/flora/taxa/index1.php?scientific-name=epilobium+parviflorum Schede di Botanica] In Croatia, it is found everywhere but subalpine and altimontane altitudes.{{sfn|Strgulc Krajšek|Šegedin|Jogan|2009|p=163}}
It grows in very moist to wet habitats.{{sfn|Strgulc Krajšek|Šegedin|Jogan|2009|p=163}}
Habitat
It prefers marshes and swamps, moist mountain meadows and slopes, at an average altitude of {{convert|0|-|1400|m}} above sea level, with a maximum of {{convert|2500|m}}.
Medicinal uses
Extracts of this plant have been used by traditional medicine in disorders of the prostate gland, bladder and kidney, having an antioxidant and antiinflammatory effect .{{Cite web |url=http://www.naturesmethod.com/Learn_About_Your_Health/Small_Flowered_Willow_Herb.php |title=Natures Method |access-date=2011-09-15 |archive-url=https://web.archive.org/web/20110925012912/http://www.naturesmethod.com/Learn_About_Your_Health/Small_Flowered_Willow_Herb.php |archive-date=2011-09-25 |url-status=dead }}{{cite journal | last1 = Hevesi | first1 = BT | last2 = Houghton | first2 = PJ | last3 = Habtemariam | first3 = S | last4 = Kéry | first4 = A | title = Antioxidant and antiinflammatory effect of Epilobium parviflorum Schreb | journal = Phytotherapy Research | volume = 23 | issue = 5| pages = 719–724 | doi = 10.1002/ptr.2725 | pmid = 19107731 | date=May 2009| s2cid = 5095826 }}{{cite journal|author1=V. Steenkamp |author2=M. C. Gouws |author3=M. Gulumian |author4=E. E. Elgorashi |author5=J. van Staden |title=Studies on antibacterial, anti-inflammatory and antioxidant activity of herbal remedies used in the treatment of benign prostatic hyperplasia and prostatitis|journal=Journal of Ethnopharmacology|volume=103|number=1|date=January 2006|pages=71–75|pmid= 16122891|doi=10.1016/j.jep.2005.07.007}} Epilobium parviflorum herb has been prescribed internally as tea in the traditional Austrian medicine for treatment of disorders of the prostate, kidneys, and urinary tract.{{cite journal | last1 = Vogl | first1 = S | last2 = Picker | first2 = P | last3 = Mihaly-Bison | first3 = J | last4 = Fakhrudin | first4 = N | last5 = Atanasov | first5 = AG | last6 = Heiss | first6 = EH | last7 = Wawrosch | first7 = C | last8 = Reznicek | first8 = G | last9 = Dirsch | first9 = VM | last10 = Saukel | first10 = J | last11 = Kopp | first11 = B | year = 2013 | title = Ethnopharmacological in vitro studies on Austria's folk medicine - An unexplored lore in vitro anti-inflammatory activities of 71 Austrian traditional herbal drugs | journal = J Ethnopharmacol | volume = 149| issue = 3| pages = 750–71| doi = 10.1016/j.jep.2013.06.007 | pmid = 23770053 | pmc=3791396}} Extracts of Epilobium have been shown to inhibit proliferation of human prostate cells in-vitro by affecting progression of the cell cycle.{{cite journal | last1 = Vitalone | first1 = A | display-authors = etal | date = May 2003 | title = Extracts of various species of Epilobium inhibit proliferation of human prostate cells | journal = J Pharm Pharmacol | volume = 55 | issue = 5| pages = 683–90 | doi=10.1211/002235703765344603| pmid = 12831512 | s2cid = 23122229 | doi-access = free }}
References
{{Reflist}}
- [http://www.plant-identification.co.uk/skye/onagraceae/epilobium-parviflorum.htm West Highland Flora]
- [https://web.archive.org/web/20120402140215/http://www.epilobium-parviflorum.com/index.html Epilobium parviflorum]
Bibliography
- {{cite journal |date=2009-06-30 |first1=Sumona |last1=Strgulc Krajšek |first2=Tamara |last2=Šegedin |first3=Nejc |last3=Jogan |title=Revision of Epilobium and Chamerion in the Croatian herbaria ZA and ZAHO |pages=155–167 |url=https://hrcak.srce.hr/38479 |journal=Natura Croatica |eissn=1848-7386 |volume=18 |issue=1}}
- Tutin, T.G. et al. - Flora Europaea, second edition - 1993
External links
{{Commons category}}
{{Wikispecies}}
- {{usurped|1=[https://web.archive.org/web/20120402121052/http://www.aphotoflora.com/d_epilobium_parviflorum_hoary_willowherb.html Photo Flora]}}
- [https://www.biolib.cz/en/taxon/id40171/ Biolib]
{{Taxonbar|from=Q159094}}
Category:Plants described in 1771