Marsilea hirsuta (potted)

Marsilea hirsuta, also known as Dwarf Four Leaf Clover,  is a carpeting plant from Australia. After a transitional period it develops different types of leaves, possibly a low form with single leaves like a large Glossostigma, or alternatively develop two, three or four-lobed clover shaped leaves varying in height (from 2-10 cm), depending on the growth conditions. Whichever form the plant adopts, it forms runners and spreads rapidly round the aquarium.