Mizunira - Mizura

Japanese: ミズニラ - みずにら

This perennial, bright green, soft aquatic plant grows in ponds, streams, and muddy areas and belongs to the ferns of the Lycopodium subphylum and the Cercopiaceae family (illustration). Its Japanese name comes from its resemblance to Chinese chives. The stem is a tuber divided into three parts and undergoes secondary growth. Numerous roots emerge from the lower part of the tuber. Numerous leaves grow in clusters, are 20-30 cm long, and are elongated, square-shaped, cylindrical, tapering to a sharp tip. The base is white, spreading oval, and has a triangular ligule on the surface of the leaf. Sporangia are attached to the surface of the leaf base.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

池沼，小川，泥地に生じる多年生の夏緑性鮮緑色の柔らかい水草で，シダ植物ヒカゲノカズラ亜門ミズニラ科に属する（イラスト）。ニラに似た姿をした水草であるところから和名がついた。茎は三分した塊茎で，二次生長をする。根が塊茎の下部から多数出る。葉は多数が叢生（そうせい）し，長さ20～30cm，細長い四角ばった円筒形で，先はしだいに細くなってとがる。基部は白色，卵形に広がり，三角形の小舌が葉の表にある。胞子囊は葉基部の表につく。

出典　株式会社平凡社世界大百科事典第２版について　情報

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