was discovered in southern Brazil (australis = southern), and it does
not come from Australia, as might otherwise be assumed from its name.
Like the other Bacopa species, B. australis is also easy
to grow in an aquarium. Under certain conditions it creeps across the
bottom to form an elegantly decorative light green cushion. When B. australis
grows in a good light, the leaves become reddish. It is easily
propagated by taking side shoots and planting them in the substrate.