Monochoria korsakowii (flowering plant)
Archaic name for a species of water plant; also referred to as 水葵 (みずあおい). Not in modern common use.
See also: ミズアオイ
Old herbal texts record 水葱 as なぎ, describing it as a waterside plant.
heartshape false pickerelweed
Archaic kanji spelling for the plant name; the reading なぎ is not obvious from the characters.
Alternate archaic kanji spelling; rarely encountered.
The derivation of なぎ is uncertain; the kanji 水葱 and 菜葱 are likely ateji based on the plant's aquatic habitat and onion-like leaves.