Alyce clover
noun
Al·yce clover ˈa-ləs- 
: a low spreading legume (Alysicarpus vaginalis) native to tropical Asia that is planted in the southern U.S. as a cover crop and for hay and forage
Word History
Etymology
probably by folk etymology from New Latin Alysicarpus, genus name, from Greek halysis chain + karpos fruit
First Known Use
1941, in the meaning defined above