de Lemos Filho, J.P. et al. (1997) “Germination of seeds of Senna macranthera, Senna multijuga and Stryphnodendron polyphyllum ”, Pesquisa Agropecuaria Brasileira, 32(4), pp. 357–361. doi:10.1590/S1678-3921.pab1997.v32.4653.