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 dark blue-green leaves and creamy yellow,
irregular marginal variegation.
Fransen Hostas website has a picture which shows
some streaking down into the leaf blade and what is
probably spring desiccation damage on the leaf margin.
They also say that this cultivar originated in Germany.
Rainer Seckinger describes it as a slow growing hosta
with margins that are very similar to H. 'Pizzazz'
but with wider margins.
Ussuri River or Wusuli River runs through Russia, and
the southeast region of Northeast China.