Kenji Watanabe of
Gotemba Nursery in Japan, this
non-registered cultivar is a seedling of H. 'Ko
Urajiro'. It is a hosta with golden-yellow foliage.
Mikiko Lockwood in an article on The Hosta Library titled,
A Little About Japanese Hosta Terms defines the term urajiro
as white-backed or white underside and the term ogon or oogon as gold or yellow.