沼縄
Meanings
1
water shield (Brasenia schreberi)
An aquatic plant with mucilaginous young shoots, used in Japanese cuisine. The more common name is 蓴菜 (じゅんさい). This reading ぬなわ is archaic or literary.
See also: ジュンサイ
In old texts, 沼縄 (ぬなわ) is recorded as an ancient name for water shield.