The article reviews how cyanide potential is inherited in certain plants like Sorghum, Lotus, and Trifolium repens. In Sorghum and Sudangrass, the genetic control of high and low cyanide potential is either dominant or partially dominant. Trifolium repens' cyanide production is controlled by two pairs of genes, determining the presence of cyanide and the enzyme linamarase. Lotus follows a similar pattern with additional genes. Environmental factors also influence cyanide levels in Trifolium repens. The presence of cyanide in Lotus corniculatus is maintained through animals feeding on non-cyanide forms.