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[[File:Ledum palustre 08.JPG|thumb|right]]'''Rhododendron tomentosum (syn. Ledum palustre), ''' is commonly known as marsh Labrador tea, northern Labrador tea or wild rosemary, . It is a flowering plant in the subsection Ledum of the large genus Rhododendron in the family Ericaceae.==Uses=={{Uses|Asthma}}, {{Uses|Cough}}, {{Uses|Cold}}, {{Uses|Stomach aches}}, {{Uses|Kidney ailments}}, {{Uses|Burns}}, {{Uses|Ulcers}}, {{Uses|Stings}}, {{Uses|Infections}}

== Description Parts Used== It is a low shrub growing to 50 cm (rarely up to 120 cm) tall with evergreen leaves 12-50 mm long and 2-12 mm broad. The flowers 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{{Parts Used|Leaves}}.

== Uses Chemical Composition==The main constituents of the oils were p-cymene (44.02%), linalool (20.5%), γ-terpinene (16.62%), thymol (1.81%), β-pinene (3.61%), α-pinene (2.83%) and eucalyptol (2.64%).<ref name="chemical composition"/>

==Properties==Reference: Dravya - Substance, Rasa - Taste, Guna - Qualities, Veerya - Potency, Vipaka - Post-digesion effect, Karma - Pharmacological activity, Prabhava - Therepeutics.===Dravya=== ===Rasa===Tikta (Bitter), Kashaya (Astringent)===Guna===Laghu (Light), Ruksha (Dry), Tikshna (Sharp)===Veerya===Ushna (Hot)===Vipaka===Katu (Pungent)===Karma===Kapha, Vata===Prabhava=== ==Habit=={{Habit|Herb}} ==Identification=====Leaf==={{Leaf|Simple|Needle-shaped|The small, needle-shaped leaves are another adaptation that limits water loss}}<ref name="Leaf"/> ===Flower==={{Flower|Unisexual|2-4cm long|White|8|The flowers are a composition of 2-3 showy}} ===Fruit==={{Fruit||7–10 mm|Clearly grooved lengthwise, Lowest hooked hairs aligned towards crown||Many}} ===Other features=== ==List of Ayurvedic medicine in which the herb is used== ==Where to get the saplings====Mode of Propagation=={{Propagation|Seeds}}, {{Propagation|Cuttings}}. ==How to plant/cultivate==Requires a lime-free loam or peaty soil[1, 11]. Prefers a moist humus-rich acid soil in shade or semi-shade.<ref name="How to plant/cultivate"/> ==Commonly seen growing in areas=={{Commonly seen|Tall grasslands}}, {{Commonly seen|Bridge of Allan in Sterling and Perth}}. ==Photo Gallery==<gallery class="left" caption="" widths="140px" heights="140px">File:Rhododendron tomentosum 001.JPG|{{VIS seal}}File:Ledum palustre01e.jpg|Hokkaido, JapanFile:Rhododendron-palustre.JPGFile:Bagno zwyczajne Ledum palustre.jpgFile:Kveten pp zemlicka 03.jpgFile:Rhododendron tomentosum Lakjärvenrahka.jpgFile:Soosepa raba1.JPG</gallery> ==References== <references> <ref name="chemical composition">[https://www.tandfonline.com/doi/abs/10.1080/09637480701777944?src=recsys&journalCode=iijf20 Chemical constituents]</ref> <ref name="Leaf">[http://pza.sanbi.org/eriocephalus-africanus Plant decsription]</ref> <ref name="How to plant/cultivate">[https://www.pfaf.org/user/Plant.aspx?LatinName=Ledum+palustre Cultivation details]</ref></references> == External Links == * [http://www.naturalmedicinalherbs.net/herbs/l/ledum-palustre=wild-rosemary.php Wild rosemary on natural medicinal herbs.net]*[https://enwww.botanical-online.com/florrosmarinusofficinalisangles.wikipediahtm Wild rosemary on botanical-online.orgcom]* [http:/wiki/Rhododendron_tomentosum Rhododendron tomentosum doctorschar.com/osemary-rosmarinum- Wikipediaofficinalis/ Wild rosemary on octorschar's plant information]* [http://www.herbgarden.co.za/mountainherb/herbinfo.php?id=217 Wild rosemary on herbgarden.co.za plant information ]