Multiflora Rose is one of the worst invasive plant species in the United States. Native to East Asia, it is well suited to the climate of North America. However, the local ecosystem is not prepared to handle it. The plant spreads aggressively, has sharp thorns that discourage grazing herbivores, and does not appear to be vulnerable to any native pests. It is also quite stubborn about regrowing from roots which makes it difficult to control. Attempts to kill it or remove it often result in new bushes springing up from the ground. It was originally introduced to the US with the intent of it providing erosion control with its aggressive roots and providing livestock controlling hedges with it’s thickets of thorns. It proved to be far better at both of those than desired and now often takes over natural landscapes making it almost impossible for native species to compete.
Crayshack 
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