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24in) 60 cm 60 - startsto gro and crowd out other other out crowd and species. Onceit sprout and grow next to growbuildings, next and sprout foundations. damage and Inwoodlots, the trees canquickly ta it is is it kill,because new shoots can sproutup fromthe roots. THEAILANTHUS PLANT Ailanthustrees grow inft) (80 more or meters 25 height.

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medicine. isused for lumber In fuel. and EastAsia thefruits areused in tr In poorer poorer In countries thewood

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al land use g o do this, they plotted the location of all of location the they this, plotted odo SPOTLIGHT RESEARCH ON QUOTE r andem PublishingC wn from the ci the from wn T from T States ailanthus is quickly spreading spreading ailanthusis quickly States

ru - Landerberge , but only in the tenement districts intenement the butonly , to y ways, - Thescientists disc ov One femaleailanthus tree can produce more Scientistsat the W h est Virginia Uni pread, and where it where and is li pread, “...” plots where nati where plots to the countryside). They used both air photos photos air both They used the countryside). to sur ground and withinthe 9 plots. The female trees can easily ta photos air on spotted be mid in ripen pine nor a hemlock. It hadle pointed It hemlock. a pinenor W Department of BiologyDepartment Department and of Geology and Geog numbers suburbanplots. There are far fewer in the ru line dra line urbantrees already occu than 300,000 winged seeds each each winged seeds than300,000 (2005) Spatial patterns of female urban grewalong green switches which loo which tree a made and bough the - Source: in F tree one “The Mapping Ailanthus trying to better understand where ailanthus has has ailanthus where understand better to trying s future. thefemale trees in 9 different 85 acrossa seeds can ride the wind for great distances, distances, great the wind ride for can seeds sprout quickly can they land, they when and ma trees. In into new grow and United fromthe citiesto the countryside. Insome along grow stands thick areas, suburban hig spacewhere they can li rem continually arefound at the edges of roadsidesand forests, andin other places where nati its seed fell, it made a tree which struggled to to which struggled tree a made it fell, itsseed reachthe sk it and heaps, rubbish neglected of out lotof opened up green umbrellas.Some people itcall the been disturbed. They are poised to spread into to spread are poised They disturbed. been newareas in the suburbs, especiallywhere new roadsand homes are being built. only tree that gr that tree only lushl c . . fi e e y y

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