Bacopa monnieri is a very common amphibious
plant of the Pan Tropics where it occupies the banks of slow flowing rivers
and lakes. The light green leaves are placed opposite on a hairy and weakly
branched stem. The leaves are often narrower than the leaves of B. caroliniana
and B. monnieri tends to have longer internodes, too. If the shoot
reaches the surface, it may set small white to pink flowers during
summertime. The submerged shoots of B. monnieri hardly ramify and thus
several shoots - a minimum of ten - should be planted in a group to provide a
satisfying ornament effect. B. monnieri is a modest and very sturdy
plant. It accepts soft to hard, even brackish, water and it prefers a
fine-grained nutrient rich substrate.
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