They are commonly known as pennyworts. This genus includes 100 over species, but only a few species can adapt to submersed growth. Hydrocotyle Leucephala and Hydrocotyle Verticillata originate from America while Hydrocotyle Vulgaris comes from Europe and Africa. Hydrocotyle Leucephala has kidney shaped leaves with cernate margins. The petiole runs in to deepest point of the cut on the leaf lamina. Hydrocotyle Sibthorpioides has leaves that are nearly lobed to form 2-4 lobules. The petiole attachment is similar to that of Hydrocotyle Leucephala. Hydrocotyle Verticillata has bright green leaves that are shield-like and not incised at the base. Development of roots from the node is common for Hydrocotyle Leucephala and Hydrocotyle Verticillata. All these plants have a strong tendency to float along the water surface.
This plant is native to Mauritius and it is distributed in parts of other countries like: China, Bangladesh, Sri Lanka and… It is a low- growing plant which can live on dry lands like wet lands. Some people around the world consider it an invasive weed near the banks of the rivers. Its commercial name is Hydrocotyle Maritima. The leaves of this species is similar to Hydrocotyle Leucocephala, but much smaller. This plant needs much attention and also requires strong light and CO2 injection to grow good and reach the best size. High level of phosphate can help to avoid green algae from its leaves. For propagation, you just need to cut off the stalks. It is not difficult to propagate this plant.
Hydrocotyle Verticillata retains its growth form very well. This plant becomes 4-7 CM tall. Ideal growth will be achieved in strong lighting and acidic water. You can use it as a floating plant, and it is suitable for planting in foreground of the aquarium and garden ponds. You can also use it as an indoor plant, Of course you must know that the soil should be moist.