There are quite a few growths shooting out on this Panzarella orange veneer-grafted onto Tai-tri. Don't know much about Panzarella orange. Apparently Texas citrus grower, John Panzarella, found it coming up in his compost pile. Its fruit size is as large as a grapefruit and is quite juicy, but also has lots of seeds. It may be a cross between a sweet orange and Citrus ujukitsu (sweet lemon). I've never tried one. Got the scion from a citrus grower in Virginia Beach.