Marsilea spp are amphibious ferns that are rooted in the substrate with submersed, floating and aerial leaves. The floating and aerial leaves resemble a four-leafed clover. The submersed leaf shape is influenced by environmental factors and can have four, tree, two or one lobes. The leaves are arranged mainly in 2 rows on the creeping rhizome with developed roots at the base. In typical fern fashion the young leaves are rolled.
- Common Names - Synonyms:
- Water clover (several species)
Nardoo (several species)
- Origin - Distribution:
In nature it is mostly found in slow flowing or stagnant water. However, in aquariums it is an adaptable plant being able to grown at lower light levels. Although taller leaves may be observed if the plant is shaded or crowded, it will often send the rhizome in shaded areas such as under the hardscape or in the background plants.
When planting a new carpet, 2-3 leaves per rhizome are enough to start a new plant under the right conditions. If space is available it will branch readily. The leaf size depends on the specie and light available but can start from aprox. 0.5cm. It easily adapts to aerial growth.
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