Lemna is a genus of free-floating aquatic plants referred to by the common name "duckweed". They are morphologically divergent members of the arum family Araceae. These rapidly growing plants have found uses as a model system for studies in community ecology, basic plant biology, ecotoxicology, and production of biopharmaceuticals, and as a source of animal feeds for agriculture and aquaculture. Currently, 14 species of Lemna are recognised.
Aquatic plants used to clean wastewater can then be harvested and converted into biogas, turning a waste management challenge into an energy opportunity. This study found that both bulrush and duckweed produce similar amounts of methane after anaerobic digestion, making them viable dual-purpose crops for water treatment and renewable energy.
