Common Name:  Garlic Mustard Scientific Name:  Alliaria petiolata Plant Origin:  Europe Encroaches upon the limited habitat of many endangered native plant species, competing for resources normally available for native plants. Reduces and eliminates host plants for native insects and other wildlife. Can be toxic to insects seeking the native host plant, such as the West Virginia White butterfly that sometimes mistakes garlic mustard for toothwort. Quickly takes over native ground cover species because it produces large numbers of seeds and has no natural predators.