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Journal Article

The Recent Spread of Cyperus entrerianus (Cyperaceae) in the Southeastern United States and Its Invasive Potential in Bottomland Hardwood Forests

David J. Rosen, Richard Carter and Charles T. Bryson
Southeastern Naturalist
Vol. 5, No. 2 (2006), pp. 333-344
Published by: Eagle Hill Institute
Stable URL: http://www.jstor.org/stable/3878214
Page Count: 12
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Recent Spread of Cyperus entrerianus (Cyperaceae) in the Southeastern United States and Its Invasive Potential in Bottomland Hardwood Forests
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Abstract

Cyperus entrerianus, a native of temperate South America, has become a tenacious weed in the southeastern United States. Herbarium and field studies revealed records of C. entrerianus from an additional 39 counties in the southeastern United States, increasing the number of counties where it is known by 118%. Vegetation sampling at two southeast Texas bottomland hardwood stands showed that C. entrerianus is capable of invading the understory of a mature forest with old-growth characteristics and that native herbaceous species richness and aerial cover are negatively correlated with increasing aerial cover of C. entrerianus. Life-history characteristics of C. entrerianus suggest it will continue to spread and could alter both herbaceous and woody plant dynamics in bottomland forests of the southeastern United States.

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