Name: greene Savannah, GA (Sunset 28) (Zone 8b) I have no use for internet bullies!
It happens naturally sometimes but not very often.
One is xFatshedera lizei is a naturally occurring cross between Fatsia japonica and Hedera helix 'Hibernica', but both plants are in the Aralia family. It's an inter-generic hybrid, a cross between plants from different genera.