World Library  
Flag as Inappropriate
Email this Article

Lewisia

Article Id: WHEBN0009902615
Reproduction Date:

Title: Lewisia  
Author: World Heritage Encyclopedia
Language: English
Subject: Lakewold Gardens, Lewisia longipetala, Lewisia cotyledon, Lewisia maguirei, Lewisia congdonii
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Lewisia

Lewisia
Lewisia
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Montiaceae
Genus: Lewisia
Pursh
Species

19, see text

Lewisia is a plant genus, named for Meriwether Lewis who encountered the species in 1806. The native habitat of Lewisia species is north facing cliffs in the western part of North America. Local Native Americans ate the roots, which have also been used to treat sore throats.

Contents

  • Characteristics 1
  • Taxonomy 2
    • List of species 2.1
  • Distribution and habitat 3
  • Uses 4
  • References 5
    • Notes 5.1
    • Bibliography 5.2
  • External links 6

Characteristics

Lewisias are perennial alpine plants native to western North American. They produce rosette-shaped flowers that may be one of a range of different colours.[1] Lewisia cotyledon grow up to 0.5 metres (1.6 ft) in height and width.[2]

Most species of Lewisia are deciduous, including the original Lewisia rediviva; Lewisia longipetala is the only semi-deciduous species. Some species, such as Lewisia cotyledon, are evergreen.[3]

Taxonomy

Meriwether Lewis is credited with the first discovery by a European or American of Lewisia, which was known to the local Native Americans as bitterroot. Lewis discovered the specimen in 1806 at Lolo Creek, in the mountain range that became known as the Bitterroot Mountains.[4] The plant was given its scientific name, Lewisia rediviva, by Frederick Traugott Pursh.[5]

List of species

There are nineteen species and several varieties of Lewisia, including:[6]

Distribution and habitat

Lewisias are naturally found in western parts of North America. In their native habitat of north facing cliffs, Lewisias are subject to extremes in weather conditions.[9]

Uses

All species of Lewisia are edible. Lewisia rediviva has a large edible root and as a result became a food source for local Native Americans.[10] The root is peeled before boiling or steaming; cooking the root reduces its bitterness.[11]

L. rediviva has also been used for medicinal purposes; chewing the root was used to relieve a sore throat. It has also been used to promote milk flow during lactation.[12]

For gardening, Lewisia species are usually planted in rockeries because this mimics their natural habitat. Rockeries also provide the free drainage that Lewisias need to prevent their roots rotting.[13] They may also be planted in pots, though they need to be well drained and protected from sustained wet weather.[14]

References

Notes

  1. ^ Clayton & Drury 2012, p. 36
  2. ^ "Lewisia cotyledon AGM". Royal Horticultural Society. 2011. Retrieved 31 July 2012. 
  3. ^ "- Lewisias". Alpine Garden Society - Bedfordshire group. Retrieved 31 July 2012. 
  4. ^ Charles Lyte. "In focus: Lewisia". The Telegraph. Retrieved 31 July 2012. 
  5. ^ "Bitterroot Plant Trivia". Bitterroot Heaven. 2007. Retrieved 31 July 2012. 
  6. ^ Unless otherwise sourced all items in this list use: "Classification for Kingdom Plantae Down to Genus Lewisia Pursh".  
  7. ^ Edna Ray-Vizgirda (13 October 2012). "Sacajawea's bitterroot (Lewisia sacajaweana)".  
  8. ^ "Lewisia ×whiteae Purdy [cotyledon × leeana]". United States Department of Agriculture. Retrieved 5 August 2012. 
  9. ^ Clayton & Drury 2012, p. 36
  10. ^ Vizgirdas & Rey-Vizgirdas 2009, p. 153
  11. ^ Vizgirdas & Rey-Vizgirdas 2009, p. 154
  12. ^ "Bitterroot - Lewisia rediviva Pursh". Plant-life. Retrieved 31 July 2012. 
  13. ^ Clayton & Drury 2012, p. 36
  14. ^ Clayton & Drury 2012, p. 36

Bibliography

  • Clayton, Phil; Drury, Anita (2012). "Succeed with Lewisia".  
  • Vizgirdas, Ray; Rey-Vizgirdas, Edna (2009). Wild Plants of the Sierra Nevada. University of Nevada Press. p. 384.  

External links

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.