This is one of those cases where there are two hostas with the same name. One is registered and, therefore, the "official" version of H. 'Pucker Up' while the other is a non-registered plant and needs to be renamed to avoid further confusion.

Registered by Phyllis Kedl of Minnesota in 2010, this medium size (16 inches high by 36 inches wide cultivar is of unidentified parentage. The greenish yellow foliage is heavily corrugated, nearly round and dull on top. Bell shape flowers bloom from June into July on scapes up to 20 inches tall.

According to the registration materials: "...unique yellow green color, seasonal change from green to yellow, intense rugosity..."

Hosta Helper will call this plant 'Pucker Up' (Kedl)

MyHostas Database lists another cultivar of this name from Carol Brashear of Connecticut.  this non-registered cultivar is of unidentified parentage. It is a small size hosta with deep, dark green, shiny foliage. The leaves, of course, are puckered.

Hosta Helper will call this plant 'Pucker Up' (Brashear)