Santos, F.L.S. Teixeira, I.R. Timossi, P.C. Silvério, J.G.D. Benett, C.G.S. Phytosociological survey of weed plants in intercrops of common beans and castor beans Subjects--Topical Terms: RICINUS COMMUNISMAMONAPHASEOLUS VULGARISFEIJÃOERVA DANINHA