New Zealand Stonecrop
This plant has been added to the gaps between the edging stones of the Pnod. It is well known as a very invasive species so hopefully can be relied upon to grow over the slabs, thus disguising them, and into the water. It has short succulent leaves about the size of a rice grain and produces white, four-pointed, star-shaped flowers.
Again, this plant has been added to the gaps between the edging stones of the Pnod. It spreads rapidly, producing long runners covered in small round leaves. The flower are bright yellow and superficially resemble buttercups. Again, this species will happily grow into the water and is sometimes used in coldwater aquaria.