it is regulated in the state of florida. some sources consider it generally invasive in areas with suitable climate for it to out-compete native species, in a manner similar to how cow vetch, "vicia cracca", is regarded. with both vetches, their agricultural usefulness is typically given precedence over concerns regarding potential ecological degradation. despite being native to part of europe it is considered an alien or invasive species in some european countries, such as belgium, the czech republic, france, germany, italy, poland, and spain.