Why is wild garlic illegal in the USA?

Could you elaborate on why wild garlic is considered illegal in the United States? Is it due to its potential harm to the environment, or perhaps it poses a threat to human health? Are there any specific regulations or laws in place that prohibit its cultivation, sale, or consumption? Additionally, are there any states within the USA that allow wild garlic to be legally grown or consumed, and if so, what are the exceptions to the rule?