There is an image of this
cultivar on the
Hosta Library. From the photo on the HL website, it
appears to be a large size hosta with golden yellow
leaves which change to light green later in the season.
The leaves are very pointed. It is a tetraploid sport of
H. 'Liberty'. This non-registered cultivar was
Philips of Belgium.
The MyHostas database says that "...'Kingin-rasha' could
be the same..."