‘Bigeneric hybrid’ is a plant produced by crossing two plants from….

Different genera. This is indicated by a cross positioned in front of the plant’s name. For instance, the Ivy Tree (X Fatshedera lizei) is a cross between a form of the False Castor Oil Plant (Fatsia japonica ‘Moseri’), also known as the Japanese Fatsia, and the Irish Ivy (Hedera helix ‘Hibernica’).