Ludwigia stipulacea; a species of primrose-willow
A specific aquatic plant species native to East Asia. The name is a botanical term.
Ludwigia stipulacea is a perennial plant that grows in wetlands.
Kanji spelling is rare; the plant name is usually written in katakana.
The name ミズキンバイ (水金梅) literally means 'water golden plum', likely referring to the plant's habitat and flower appearance. The exact derivation is uncertain.