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==References==
==References==
* {{cite book | author=[[Neltje Blanchan|Blanchan, Neltje]] | title=[[Wild Flowers: An Aid to Knowledge of our Wild Flowers and their Insect Visitors]] | year=[[2002]] | publisher=[[Project Gutenberg|Project Gutenberg Literary Archive Foundation]]}}
* {{cite book | author=[[Neltje Blanchan|Blanchan, Neltje]] | title=[[Wild Flowers: An Aid to Knowledge of our Wild Flowers and their Insect Visitors]] | year=[[2002]] | publisher=[[Project Gutenberg|Project Gutenberg Literary Archive Foundation]]}}

==External Links==
*[http://www.invasivespeciesinfo.gov/plants/houndstongue.shtml Species Profile- Houndstongue (''Cynoglossum officinale'')], National Invasive Species Information Center, [[United States National Agricultural Library]]. Lists general information and resources for Houndstongue.


{{Commons|Cynoglossum officinale}}
{{Commons|Cynoglossum officinale}}

Revision as of 19:43, 15 February 2011

Cynoglossum officinale
Scientific classification
Kingdom:
(unranked):
(unranked):
(unranked):
Order:
(unplaced)
Family:
Genus:
Species:
C. officinale
Binomial name
Cynoglossum officinale

Cynoglossum officinale [1][2] (houndstongue, dog's tongue, gypsy flower, and rats and mice due to its smell ) is a herbaceous plant of the family Boraginaceae, found in most parts of Europe, and also North America where it was accidentally introduced.[2]

Growth

It can be either annual or biennial, with reddish-purple flowers blooming between May and September. It lives in wet places, waste land and hedges.

Folklore

The name houndstongue comes from the belief that it could, if a leaf was worn in the shoe, ward off dog attacks.

Herbalism

Herbalists use the plant as a treatment for piles, lung diseases and persistent coughs. Houndstongue ointment is said to cure baldness, and can be used for sores and ulcers. Not all of these uses are supported by scientific evidence.[3]

Toxicity

Cynoglossum officinale contains tumorigenic pyrrolizidine alkaloids.[4]

Notes

  1. ^ "Cynoglossum officinale". Integrated Taxonomic Information System.
  2. ^ Cynoglossum officinale at USDA PLANTS Database
  3. ^ Howard, Michael. Traditional Folk Remedies (Century, 1987); p.161
  4. ^ Fu, P.P., Yang, Y.C., Xia, Q., Chou, M.C., Cui, Y.Y., Lin G., "Pyrrolizidine alkaloids-tumorigenic components in Chinese herbal medicines and dietary supplements", Journal of Food and Drug Analysis, Vol. 10, No. 4, 2002, pp. 198-211[1]

References