https://www.gardenology.org/w/index.php?action=history&feed=atom&title=Marsh_Labrador_Tea 2026-04-10T02:57:13Z Revision history for this page on the wiki MediaWiki 1.43.0 https://www.gardenology.org/w/index.php?title=Marsh_Labrador_Tea&diff=10598&oldid=prev 2007-10-26T04:10:34Z

<p></p> <p><b>New page</b></p><div>{{Taxobox | color = lightgreen<br /> | name = Marsh Labrador Tea<br /> | image=Rhododendron-palustre.JPG<br /> | image_width = 240px<br /> | image_caption = &#039;&#039;R. tomentosum&#039;&#039; in flower<br /> | regnum = [[Plantae]]<br /> | divisio = [[Magnoliophyta]]<br /> | classis = [[Magnoliopsida]]<br /> | ordo = [[Ericales]]<br /> | familia = [[Ericaceae]]<br /> | genus = &#039;&#039;[[Rhododendron]]&#039;&#039;<br /> | subsectio = &#039;&#039;[[Ledum]]&#039;&#039;<br /> | species = &#039;&#039;&#039;&#039;&#039;R. tomentosum&#039;&#039;&#039;&#039;&#039;<br /> | binomial = &#039;&#039;Rhododendron tomentosum&#039;&#039;<br /> | binomial_authority = Harmaja<br /> }}<br /> <br /> &#039;&#039;&#039;Marsh Labrador Tea&#039;&#039;&#039;, &#039;&#039;&#039;Northern Labrador Tea&#039;&#039;&#039; or &#039;&#039;&#039;Wild Rosemary&#039;&#039;&#039; (&#039;&#039;Rhododendron tomentosum&#039;&#039;, formerly &#039;&#039;Ledum palustre&#039;&#039;), is a [[flowering plant]] in the subsection &#039;&#039;[[Ledum]]&#039;&#039; of the large genus &#039;&#039;[[Rhododendron]]&#039;&#039; in the family [[Ericaceae]]. It is a low [[shrub]] growing to 50 cm (rarely up to 120 cm) tall with [[evergreen]] [[leaf|leaves]] 12-50 mm long and 2-12 mm broad. The [[flower]]s are small, with a five-lobed white corolla, and produced several together in a [[corymb]] 3-5 cm diameter. They emit strong smell to attract [[bees]] and other pollinating insects.<br /> <br /> In North America it is found growing in northern latitudes in [[Greenland]], [[Canada]], and [[Alaska]], in [[Europe]] south to [[Germany]], and in [[Asia]] south to northern [[China]], [[Korea]] and [[Japan]]. It grows in peaty soils, shrubby areas, moss and lichen tundra.<br /> <br /> For its traditional uses in [[herbal medicine]], see [[Labrador Tea]]; it has also been traditionally used as a [[gruit]] in brewing [[beer]] in the [[Middle Ages]]. All parts of the plant contain poisonous [[terpenes]] that affect [[central nervous system]], causing aggressive behaviour. First symptoms of overdosage are dizziness and disturbances in movement, followed by spasms, nausea and unconsciousness. The mere smell of the plant may cause headache to some people.<br /> <br /> ==External links and references==<br /> *[http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?410675 Germplasm Resources Information Network: &#039;&#039;Rhododendron tomentosum&#039;&#039;]<br /> *[http://www.efloras.org/florataxon.aspx?flora_id=2&amp;taxon_id=200016302 Flora of China: &#039;&#039;Ledum palustre&#039;&#039;]<br /> *[http://plants.usda.gov/java/profile?symbol=LEPA11 USDA PLANTS database: &#039;&#039;Ledum palustre&#039;&#039;]<br /> *[http://linnaeus.nrm.se/flora/di/erica/rhodo/rhodtomv.jpg Den virtuelle floran: &#039;&#039;Distribution&#039;&#039;]<br /> <br /> {{commons|Rhododendron tomentosum}}<br /> <br /> [[Category:Ericaceae]]<br /> [[Category:Herbs]]<br /> [[Category:Herbal tea]]<br /> [[Category:Medicinal plants]]<br /> [[Category:Flora of Europe]]<br /> [[Category:Flora of Estonia]]<br /> [[Category:Flora of China]]<br /> [[Category:Flora of Korea]]<br /> [[Category:Flora of Japan]]<br /> [[Category:Flora of Asia]]<br /> [[Category:Flora of the United Kingdom]]</div>

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