Medicago

Medicago is a genus of flowering plants, commonly known as medick or burclover, in the legume family. It contains at least 87 species and is distributed mainly around the Mediterranean basin. The best-known member of the genus is alfalfa, an important forage crop, and the genus name is based on the Latin name for that plant, medica, from Greek: μηδική Median. Most members of the genus are low, creeping herbs, resembling clover, but with burs. However, alfalfa grows to a height of 1 meter, and tree medick is a shrub. Members of the genus are known to produce bioactive compounds such as medicarpin and medicagenic acid. Chromosome numbers in Medicago range from 2n = 14 to 48. The species Medicago truncatula is a model legume due to its relatively small stature, small genome, short generation time, and ability to reproduce both by outcrossing and selfing. Comprehensive descriptions of the genus are Lesinš and Lesinš 1979 and Small and Jomphe 1989.