An article by
George Schmid in
Hosta Journal (1996 Vol. 27 No. 2) states that this
is an "old" incorrect name for Hosta
Mikiko Lockwood in an article on The Hosta Library titled,
A Little About Japanese Hosta Terms defines the term nakafu as medio-variegated, the term shironakafu or shiro nakafu as white-center(ed).
and the term otome as maiden, 'Otome Gibōshi' or