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Azolla may contain this substance that is a possible cause of neurodegenerative diseases, including causing ALS, Alzheimer's, and Parkinson's. [29] [30] [31] Azolla has been suggested as a foodstuff for human consumption, however, no long-term studies of the safety of eating Azolla have been made on humans. [32]
Azolla filiculoides (water fern) is a species of aquatic fern. It is native to warm temperate and tropical regions of the Americas , and has been introduced to Europe , North and sub-Saharan Africa , China , Japan , New Zealand , Australia , the Caribbean and Hawaii .
Azolla cristata , the Carolina mosquitofern, [3] Carolina azolla or water velvet, is a species of Azolla native to the Americas, in eastern North America from southern Ontario southward, and from the east coast west to Wisconsin and Texas, and in the Caribbean, and in Central and South America from southeastern Mexico south to northern Argentina and Uruguay.
Azolla pinnata is a species of fern known by several common names, including mosquitofern, [2] feathered mosquitofern and water velvet. It is native to much of Africa, Asia (Brunei Darussalam, China, India, Japan, Korea, and the Philippines) and parts of Australia. It is an aquatic plant, it is found floating upon the surface of the water.
The fern Azolla forms a symbiotic relationship with the cyanobacterium Anabaena azollae, which fixes atmospheric nitrogen, giving the plant access to this essential nutrient. This has led to the plant being dubbed a "super-plant", as it can readily colonise areas of freshwater, and grow at great speed - doubling its biomass in as little as 1.9 ...
Azolla nilotica is a floating water-bound fern of up to 32 cm (13 in) long, with a long, horizontal, branched, hairy rhizome of up to 2 mm (0.079 in) thick. Side branches are alternately set.
Azolla mexicana is a floating aquatic with blue-green to dark red leaves. It is distinguished from the two other species of the genus present in North America, Azolla caroliniana and Azolla filiculoides, by having multicellular hairs on the leaves and pits on the megaspores.
The modern fern Azolla filiculoides.Blooms of a related species may have pulled the Earth into the current icehouse world.. The Azolla event is a paleoclimatology scenario hypothesized to have occurred in the middle Eocene epoch, [1] around , when blooms of the carbon-fixing freshwater fern Azolla are thought to have happened in the Arctic Ocean.