Rhododendron groenlandicum

Rhododendron groenlandicum
File:Rhododendron groenlandicum.jpg
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Ericales
Family:	Ericaceae
Genus:	Rhododendron
Subgenus:	Rhododendron
Section:	Rhododendron
Subsection:	Ledum
Species:	R. groenlandicum
Binomial name
Rhododendron groenlandicum (Oeder) Kron & Judd
Synonyms
Ledum groenlandicum Oeder Ledum palustre subsp. groenlandicum (Oeder) Hultén

Rhododendron groenlandicum (bog Labrador tea, formerly Ledum groenlandicum or Ledum latifolium), is a flowering shrub with white flowers and evergreen leaves that is used to make a herbal tea.

It is a low shrub growing to 50 centimetres (20 in) (rarely up to 2 metres (6 ft 7 in)) tall with evergreen leaves 20–60 millimetres (0.79–2.36 in) long and 3–15 millimetres (0.12–0.59 in) broad. The leaves are wrinkled on top, densely hairy white to red-brown underneath, and have a leathery texture, curling at the edges. The tiny white flowers grow in hemispherical clusters and are very fragrant and sticky.

File:Loddiges 534 Ledum latifolium drawn by W Miller.jpg

Ledum latifolium drawn by William Miller

It is found growing in northern latitudes around the world. In Europe, it occurs south to the Alps. It is reported from Greenland, as well as from every province and territory in Canada and in the northeastern and northwestern United States (New England, New York, Pennsylvania, Michigan, Wisconsin, Minnesota, Idaho, Washington, Oregon and Alaska). It grows in bogs and on wet shores, and sometimes on rocky alpine slopes.

It is often used as a spice in dishes containing wild game. It is also used as flavoring in distilled spirits.

For its traditional uses in herbal medicine, see Labrador tea.

External links

• USDA PLANTS database: Ledum groenlandicum
• Description of Rhododendron groenlandicum at the American Rhododendron Society
• Photograph of Rhododendron groenlandicum plus description at the Washington Native Plant Society
• Rhododendron groenlandicum at the Connecticut Botanical Society

See also

• Rhododendron (disambiguation)
• List of Rhododendron species
• List of rhododendron diseases
• List of Award of Garden Merit rhododendrons

• Kron, Kathleen Anne. & Judd, Walter Stephen. Systematic Botany 15(1): 67. 1990.
• Peterson, R. T. and McKenny, M. A Field Guide to Wildflowers Northeastern and North-central North America.
• Blamey, M. & Grey-Wilson, C. 1989. Illustrated Flora of Britain and Northern Europe. Hodder & Stoughton, London.