Published in the Contra Costa Times on July 22, 2006

 

Q. What is legume? 

 

A. Plants called legumes are members of the Fabaceae or Bean and Pea family of plants.  This is currently believed to be one of the largest plant families, and a very important one to people.  Included in this family are annuals, perennial herbs, shrubs, vines and trees.  Over 19,000 species can be found from the arctic to desert regions and everywhere in between. One of the adaptations legumes have evolved is a symbiotic relationship with nitrogen fixing bacteria (rhizobia) that live on their roots, enabling the plants to grow in areas where soil nitrogen might not be available. By the time of the Roman Empire, legumes were being grown to improve soils as they are today.