Difference between revisions 122055704 and 122055705 on dewiki

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{{taxobox
|image = Echinacea laevigata.jpg
|status = G2
|status_system = TNC
|regnum = [[Plantae]]
|unranked_divisio = [[Angiosperms]]
|unranked_classis = [[Eudicots]]
(contracted; show full)are several species of [[oak]] that occur, but these are stunted such that sunlight reaches the [[understory]].<ref name=rec/> When human impacts began to reduce the amount of forest habitat remaining in the region, the plant survived in other open, sunny habitat types, such as cedar barrens, [[Clearcutting|clearcuts]], roadsides, cleared areas around utility equipment, and limestone bluffs. Two thirds of the populations known since the plant was first discovered are now gone.<ref name=tnc/> 


[[Image:Echinacea laevigata smooth purple coneflower.JPG|right|thumb|250px|Echinacea laevigata at the National Arboretum in Washington, DC.]]
Populations of the plant were lost when the habitat was destroyed, or when it was degraded as natural processes of disturbance were prevented. The plant requires open habitat where it can receive sunlight. When [[fire suppression]] is practiced, the habitat becomes overgrown, and the open areas close; this has led to the [[local extinction|extirpation]] of a number of historical populations.<ref name=fws/> Habitat was destroyed outright during development, [[agriculture|agricultural operations]], road(contracted; show full)==References==
* {{cite book | author=[[Neltje Blanchan|Blanchan, Neltje]] | title=[[Wild Flowers Worth Knowing]] | year=2005 | publisher=[[Project Gutenberg|Project Gutenberg Literary Archive Foundation]]}}
==External links==
*[http://plants.usda.gov/java/profile?symbol=ECLA USDA Plants Profile]
[[Category:Echinacea|laevigata]]
[[Category:Flora of the Southeastern United States]]
[[Category:Endangered flora of the United States]]
[[Category:Flora of the United States]]