Great Smoky Mountains National Park Exotics Species Locations
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Exotic plants are species that have been introduced to an ecosystem by human activities. Usually exotics come from other countries or continents, but they may also...
外来植物（exotic plants）系指经由人类活动被引入某一生态系统的物种。通常而言，此类外来植物源自其他国家或大陆，但它们也可能……
