Citrus rootstock used to dwarf the variety grafted onto it. It is a mutated Trifoliata species which has hooked thorns and is much slower growing. Due to the difficulty and slowness in growing Flying Dragon, Citrus varieties grafted onto this variety are usually more expensive. It imparts the same characteristics to the scion, including cold hardiness, tolerance to root fungi and nematodes. The bitter fruits can be used in marmalades and marinades.