lemon day-lily; lemon lily; yellow day-lily
A species of day-lily (Hemerocallis lilioasphodelus) with yellow flowers. Botanical term.
The lemon day-lily can be seen in the grasslands of Hokkaido.
Katakana spelling is common for plant names; usually written in kana.
Kanji spelling is rare and mainly found in botanical contexts.
The name combines 蝦夷 (Ezo, old name for Hokkaido) and 黄菅 (kisuge, yellow day-lily). The exact derivation is uncertain, but it likely refers to the plant's association with Hokkaido.