Rabbit-weed, also known as black medic, is a type of plant that can be found in many areas of North America. It is considered an invasive species and can quickly take over lawns and gardens if left unchecked. Although it is commonly known as rabbit-weed, it has many other synonyms, including hop clover, yellow clover, trefoil, and black clover. These synonyms are appropriate as the plant is a member of the clover family and produces small yellow flowers that resemble clover blooms. Despite its invasive nature, rabbit-weed can be useful as a forage crop for livestock and as a source of nitrogen for other plants.