is one of those cases where there are three hostas with the
same name. None is registered with
The American Hosta Society. The first one to be registered would
become the "official" hosta of that name and the
others would have to be renamed.
The Hostapedia by Mark Zilis (2009), "This name describes a dwarf ("hime"), gold-leaved ("ogon")
hosta. In practice, however, it has been used for at
least three different plants."
Mikiko Lockwood in an article on The Hosta Library titled,
A Little About Japanese Hosta Terms defines the term ogon or oogon as gold or yellow.