==As invasive species==
The beautiful nature of water lilies has led to their widespread use as [[ornamental plants]]. The [[Nymphaea mexicana|Mexican water lily]], native to the [[Gulf of Mexico|gulf coast]] of North America, is planted throughout the continent. It has escaped from cultivation and become invasive in some areas, such as [[California|California's]] [[San Joaquin Valley]]. It can infest slow moving bodies of water and is difficult to eradicate. Populations can be controlled by cutting top growth. Herbicides can also be used to control populations using [[glyphosate]] and fluridone <ref>[http://www.cdfa.ca.gov/phpps/IPC/weedinfo/nymphaea.htm Nyphaea genus<!-- Bot generated title -->]</ref>.
The [[White waterlily|white water lily]] is the [[National emblem|national flower]] of [[Sri Lanka]] and [[Bangladesh]] and State flower for [[Andhra Pradesh]], [[India]]. It is also the birth flower for July.
==In visual arts==
[[Image:Claude Monet 038.jpg|thumb|''Water Lilies,'' 1920-1926, [[Musée de l'Orangerie]] ]]
Water lilies were depicted by the [[List of French artists|French artist]] [[Claude Monet]] in a [[Water Lilies|series of paintings]].
*[[Sir Seewoosagur Ramgoolam Botanical Garden|Pamplemousses Botanical Garden]], famous for its giant water lilies
* ''The genera of the Nymphaeaceae and Ceratophyllaceae in the southeastern United States''. J. Arnold Arbor. 40: 94-112.
*Perry D. Slocum: ''Waterlilies and Lotuses''. Timber Press 2005, ISBN 0881926841 ([http://books.google.de/books?id=V62dfNKTPP0C&pg=PA79&dq=%22Nymphaea+colorata%22&lr=&sig=jbavgQBqVNQuB3sXqTneC9Htz64#PPA79,M1 restricted online version at Google Books])
* [http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=4410&lvl=3&lin=f&keep=1&srchmode=1&unlock NCBI Taxonomy Browser]