Regnellidium diphyllum (Two-Leaf Water Clover)

Regnellidium diphyllum, commonly known as Two-Leaf Water Clover or Aqua Fern, is an aquatic fern species. It has two types of leaves, with the submerged leaves being finely dissected and delicate, while the emergent leaves are larger and more robust. This fern forms floating mats in still or slow-moving bodies of water, and it has a unique reproductive strategy involving the production of structures called gemmae, which allow it to reproduce asexually.