MatchClover is a web-based application to improve the selection of legume species for specific locations and intended uses in the US. It is based on research and extension information on forage and cover-crop legumes produced in Oregon and used throughout the US and the world. Selection strategies are based on qualitative and quantitative tolerances to climatic and soil-based factors and species suitability for use as pasture, hay, silage, cover-crop, soil conservation and improvement, and beautification applications. Climatic and soil information is used to define conditions which are then compared with the legume species tolerances to determine how well-suited each species is for each specific location being considered. The intended use and management level information further refine the search to the most appropriate legume.