ニッコウキスゲにっこうきすげMeanings1nounNikko day lily; orange-yellow day lilyusually written using kana aloneA perennial plant native to Japan, especially associated with the Nikko region. The scientific name is Hemerocallis dumortierii.初しょ夏かになると、戦場ヶ原せんじょうがはらではニッコウキスゲが一いち面めんに