azolla

Azolla filiculoides is a small aquatic fern species that thrives in freshwater environments. It is native to warm temperate and tropical regions of the Americas and has since been introduced to other parts of the world, including Europe, sub-Saharan Africa, China, Japan, New Zealand, and the Caribbean. The plant is part of the genus Azolla and is found in locations such as British Columbia, Belgium, and Colombia. It is widely distributed across multiple biogeographic regions, including the Nearctic, Neotropical, and Australasian zones.