Hemerocallis middendorffii var. esculenta

Hemerocallis middendorffii var. esculenta (synonym Hemerocallis esculenta)^[1] known as nikkōkisuge or zenteika (in Japanese: 日光黄菅 or 禅庭花) is a perennial plant belonging to the family Asphodelaceae. It is native to Japan.^[1] Its yellow flower blooms in early summer, especially in the highlands of Japan in large groups.^[2][3]

Hemerocallis middendorffii var. esculenta
In the Hida Mountains, Gifu Prefecture
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Asphodelaceae
Subfamily:	Hemerocallidoideae
Genus:	Hemerocallis
Species:	H. middendorffii
Variety:	H. m. var. esculenta
Trinomial name
Hemerocallis middendorffii var. esculenta Koidz.
Synonyms[1]
Hemerocallis esculenta Koidz. Hemerocallis pedicellata Nakai

Distribution

Some of the places where nikkōkisuge grows include:^[4]

• Kirifuri Highland, Nikkō, Tochigi Prefecture
• Numappara Shitsugen (Wetland), Nasushiobara, Tochigi Prefecture
• Lake Oguni, Fukushima Prefecture
• Lake Nozori, Gunma Prefecture
• Ozegahara, in Gunnma Prefecture, Nagano Prefecture and Niigata Prefecture Prefectures

• 
  Nikkōkisuge in the Shiga Highlands, Nagano Prefecture