also: みずにら
noun
Japanese quillwort
A species of aquatic plant (Isoetes japonica) native to Japan. The name is usually written in kana.
ミズニラは水田や湿地に生えるシダ植物の一種です。
The Japanese quillwort is a type of fern that grows in rice paddies and wetlands.
The name ミズニラ (水韮) literally means 'water leek', referring to its resemblance to leeks and its aquatic habitat. The exact historical derivation is uncertain.