Medicago falcata is a plant species of the genus
Medicago. It is native to the Mediterranean basin, but is found throughout the world. It forms a symbiotic relationship with the bacterium
Sinorhizobium meliloti, which is capable of nitrogen fixation. Its common names include
yellow lucerne,
sickle alfalfa,
yellow-flowered alfalfa,
yellow alfalfa,
sickle medick and
yellow medick.
(Wikipedia)