A non-registered cultivar from Toyozo Nakayama of Tenjin Yama Bunen Nursery in Japan with a Hosta sieboldii background, this plant grows to about 19 inches in height and 30 inches in width. The foliage is slightly wavy and has smooth texture. Its purple flowers bloom in August on very tall scapes.

According to The Hostapedia by Mark Zilis (2009), "...its yellow leaf venation is quite striking, but this characteristic usually fades by early July in mature, garden-grown specimens...has the potential to produce streaked seedlings."

An article in The Hosta Journal (2002 Vol. 33 No. 1) reporting on a speech by Barry Yinger at the 2001 National Convention of The American Hosta Society stated "One hosta species in particular, H. rectifolia, which forms an upright mound of lance-shaped green leaves and has purple flowers, has a cult following in Japan. These avid sport hunters have found hundreds of sports in the wild. These sports which are not cultivated in the U.S. come in the whole spectrum of hosta colors...However, the crowning jewel, H. rectifolia 'Mito-no-Hana', which had green leaves with silver-white veins that caused a gasp of "Wow" from the crowd."