This cultivar is a sport of the species,
H. kikutii from Japan. This is a medium size (16 inches high
by 42 inches wide) medium to dark green leaved
are shiny and narrow with lightly rippled margins. It forms a "beak-like" bract
around the flower buds and bears clusters of near white flowers with purple
anthers from late August into September. This cultivar produces viable seeds.
Mikiko Lockwood in an article on The Hosta Library titled,
A Little About Japanese Hosta Terms defines the term nakafu as medio-variegated.