Asian Marshweed is a herb which has become popular
as an aquarium plant. Stems grows fast up to 40 cm long. It has leaves
in proper whorls, about 3 cm in diameter. The leaves are pinnate and
bright green in colou. Under strong light the leaves take on a reddish
hue. The submerse leaves are very different from the emerse forms -
dark green, more or less lance-shaped. It develops flowers only above
the water surface. Fruit are capsules, ellipsoid, 3.5-5.5 mm long,
green-brown when submersed, dark brown when emersed. This is a muddy
plant and it comes from south-eastern Asia. Its natural habitats are
standing and slow-moving reservoirs, swamps, wetlands in India, Sri
Lanka, Japan, China and Pakistan, including East Himalaya.
Identification credit: Tabish
Photographed in East Siang distt., Arunachal Pradesh.
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The flower labeled Asian Marshweed is ...