The Hostapedia by Mark Zilis (2009), "Plants with this name
can be found in many collections and are probably often confused
with 'Inaho' and 'Kisuji'.
Schmid (1991, p.109) listed this as
H. tardiva 'Aureostriata' and stated it to be an invalid
Mikiko Lockwood in an article on The Hosta Library titled,
A Little About Japanese Hosta Terms defines the term ki
as yellow or gold and the term suji as streak or line.