This non-registered cultivar was originated by Shinya Fukatsu of Japan. According to an article by the originator in The British Hosta and Hemerocallis Society Journal (Autumn 2019) this is a medium size hosta with narrow eaves that emerge as an ivory color and change to misty, greenish at the tips of the leaf blades later with streaked variegation. It is a hybrid of H. sieboldii × H. 'Tokudama'.

A sister cultivar, H. 'Hi-renjyaku' from this cross has wider leaves and less streaking.

Be aware that there is also a cultivar named H. 'Yuki-no-jou' from Yoshimichi Hirose.

Mikiko Lockwood in an article on The Hosta Library titled, A Little About Japanese Hosta Terms defines the term hosoba as narrow leaf.