D15 Hosta 'Marginata' - from The Hosta Helper

H. kiyosumiensis 'Marginata'

This is the former name of H. 'Kifukurin Kiyosumi'.

Mikiko Lockwood in an article on The Hosta Library titled, A Little About Japanese Hosta Terms defines the term kifukurin or ki fukurin as yellow edge(d) or yellow margin(ed).