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SIBERIAN ELM
Siberian elm was widely planted in America for windbreaks and as a disease-tolerant shade tree; it escaped cultivation and is now considered invasive in 41 statesSiberian elm, initially introduced to American landscapes for its Dutch elm disease resistance, soon proved problematic as it became invasi...
How a Chinese border town keeps Russia's economy afloatManzhouli, the main border crossing between China and Russia, shows growing economic ties. China is Russia's biggest buyer of oil, timber, ...