Virginian Barrier Islands and Coastal Marshes

Alligatorweed found at new Currituck site

October 23, 2026

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(Alternanthera philoxeroides) was recorded on 2026-10-01 in Currituck, a new location from the Corolla sighting of 2026-09-11.¹ This South American aquatic plant spreads rapidly in freshwater and brackish waters, forming dense mats that displace native vegetation and degrade aquatic habitat.¹

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More about Alligatorweed

Alligatorweed found in Corolla waters

September 21, 2026

(Alternanthera philoxeroides), an invasive aquatic plant native to South America, was observed in Corolla on 2026-09-11. This introduced species spreads rapidly in freshwater and brackish systems, forming dense mats that displace native vegetation and degrade habitat quality.