This is one of those cases where there are two hostas with the same name. Neither is registered with The American Hosta Society. The first one to be registered would become the "official" hosta of that name and the other would have to be renamed.

Originated by Florence Shaw of Massachusetts, this non-registered, golden-yellow cultivar is of unidentified parentage.

According to The Hostapedia by Mark Zilis (2009), "...may no longer exist..."

Hosta Helper will call this plant 'Golden Shimmer' (Shaw)

A non-registered cultivar of this name was introduced in 2014 by Joy Creek Nursery of Oregon. It is a large size (18 inches high by 36 inches wide) hybrid of H. 'Sun Power'. The leaves are a "gray" chartreuse when they emerge in the spring but turn chartreuse with golden highlights later in the season. It produces lavender pink flowers on scapes that rise slightly above the foliage.

Hosta Helper will call this plant 'Golden Shimmer' (Joy Creek Nursery)