Medicago orbicularis (*)
Medicago orbicularis (L.) Bartal.
* Cat. piante Siena 60. 1776
Medicago orbicularis is a plant species of the genus Medicago. It is found throughout the Mediterranean basin. It forms a symbiotic relationship with the bacterium Sinorhizobium medicae, which is capable of nitrogen fixation. Common names include button clover, button medick, and round-fruited medick.
Source: Wikispecies, Wikipedia: All text is available under the terms of the GNU Free Documentation License