This non-registered hosta from
Japan is a form of
H. pycnophylla. It becomes a medium size
plant with gold colored foliage.
An article about name changes by W. George Schmid in
Hosta Journal (1996 Vol. 27 No. 2) states that, "The
Latin name of the species may be omitted, because the cultivar name already
includes the vernacular Japanese name of the species. Thus,
H. pycnophylla 'Ogon
Setouchi' may be abbreviated to H. 'Ogon Setouchi' or H. longipes 'Urajiro Iwa'
may be shortened to H. 'Urajiro Iwa'..."
Mikiko Lockwood in an article on The Hosta Library titled,
A Little About Japanese Hosta Terms defines the term iwa as rock, Iwa Gibōshi or
H. longipes and the term urajiro as white-backed or
white underside, the term ogon or oogon as gold or yellow. and the term ogon or oogon as gold or yellow.