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Ottelia japonicum is
an annual herb occurring in ponds, ditches, or paddies, leaves being
underwater, the blades, broadly lanceolate, measuring 10-30cm in
length, 2-15cm in width, the petioles are long. The leaf margins
curl in a wave. Flower stalks grow up, through leaves, to the water
surface and bear white or light red-purple flowers, 2,3cm in
diameter. Bloom time: August to October. |
