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Monochoria
Monochoria korsakowii
ミズアオイ
An annual herb growing in rice paddies and ponds. It produces beautiful blue-purple flowers in summer. Once commonly seen as a weed in rice paddies, it has drastically declined in recent years due to herbicide use.
Identification Points
- ✓Blue-purple 6-tepaled flowers arranged in a spike
- ✓Leaves heart-shaped to ovate, glossy with long petioles
- ✓Annual herb growing at the water's edge of rice paddies and ponds
Habitat
Rice paddies, ponds, and reservoirs
Season
August–September (flowers)
Morphological TraitsAI-estimated, needs verification
Leaf arrangement
Alternate
Leaf type
Simple
Venation
Parallel
Leaf margin
Entire
Leaf shape
Cordate
Growth form
Herb
Flowering season
Summer
Habitat
Aquatic
Petal count
6 petals
Leaf dissection
Undivided
Ovary position
Superior
Plant sex
Hermaphrodite
Phylogenetic Positionミズアオイ科 →
Phylogenetic Position
Angiosperms > Monocots > Commelinales > Pontederiaceae
Divergence Era
Paleogene
Evolution Notes
Pontederiaceae is an aquatic-adapted monocot family that includes diverse species such as water hyacinth (Eichhornia), which floats on the water surface.
View on evolution timeline →Sources & References
AI-generated, needs verification