>>2310883Sumo citrus is sold as shiranui or dekopon in the US. I grow it. Its very productive and precocious. I bought budwood from the ccpp (riverside citrus collection). The fruit does have some seeds however. The ones i got from my tree this year were decent (probably picked too early). They had some acidity which the ones from the store dont have. According to internet research they fruit are supposed to be stored for several weeks after harvest to reduce acidity. There are better mandarins out there.