If you ever watch a duck float across a pond, gobbling up the vegetation coating the surface, that bird is way ahead of its time. The buoyant greenery is azolla, a tiny fern that grows like crazy, ...

For awhile, it looked as if water in the Cub Run — and even the Occoquan — might be in jeopardy from a strange, red plant that suddenly covered a pond in Centreville. Named azolla caroliniana the ...

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Scientists have been campaigning to turn the fast-growing Azolla into a food of the future. Others envision it becoming both a sustainable biofuel and a fertilizer that captures carbon. What is Azolla ...

RESIDENTS are alarmed an ugly brown growth covering the entire Marsden Park pond in Park Central could be sewage or a weed. The showpiece pond in Park Central has been smothered with a thick layer of ...