This is the Japanese name for H. 'Tokudama Aureonebulosa'.
An article about name changes by W. George Schmid in
Hosta Journal (1996 Vol. 27 No. 2) states that, "Transliterated Japanese names which contain substantive words do not require
changes. For example H. 'Akebono Tokudama' listed in
Grenfell (1996) is an
acceptable name because Akebono means "dawn" (of the day) and is a substantive.
Other examples of such names are H. 'Hakujima' (a place name) and H. 'Umezawa'
(a person's name.)."