Polygonum sp.

Unfortunately, the country of origin and species of this plant are unknown (it may come from Thailand). It develops beautiful bronze-coloured leaves in optimum light conditions, and is characterised by the big distance between the leaves, which grow to alternate sides. The Polygonum family is widely known as a family of marsh plants all over the world, but this species is one of the few true underwater plants, even though it sometimes grows above the water surface in open aquariums. It is most decorative when planted in small groups.