Habenaria sagittifera; arrowhead habenaria
A species of bog orchid native to East Asia. Botanical term; not commonly used in everyday conversation.
Mizutonbo is an orchid that grows in wetlands.
Kanji spelling is rare and may be confused with the dragonfly 蜻蛉 (とんぼ).
The name ミズトンボ literally means 'water dragonfly', likely from the flower's resemblance to a dragonfly. The exact origin is uncertain.