This is reported to be a graft hybrid. This accession received thermotherapy during processing as an import thru CCPP. (EM Nauer, ca 1982) This is probably (according to [WP Bitters] a graft hybrid of C. natsudaidai + Satsuma. Now, why would anyone want to do that? (EM Nauer, 11/23/1988)
Most resembles a medium-small, oblated, medium orange color, moderately rough rinded mandarin. Orange flesh, moderately seedy, tart but could be considered edible in a pinch." (EM Nauer, 01/20/1989)
This is indeed a graft-chimera of 'Natsudaidai' and 'Unshiu', as indicated in the references cited in the Pedigree area. It is one of a few graft chimeras maintained at Riverside. More information on this and other Japanese varieties will be added at a later date. (RR Krueger, 04/17/2008)