alligator weed


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Related to alligator weed: Alternanthera philoxeroides

alligator weed

n.
An aquatic South American perennial plant (Alternanthera philoxeroides) having opposite, lance-shaped leaves and small whitish flowers. It is a weed that invades warm, freshwater habitats in the southeast United States, Australia, and elsewhere.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.alligator weed - prolific South American aquatic weed having grasslike leaves and short spikes of white flowersalligator weed - prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses
Alternanthera, genus Alternanthera - genus of low herbs of tropical America and Australia; includes genus Telanthera
weed - any plant that crowds out cultivated plants
References in periodicals archive ?
Radulovich and his colleagues also see potential in aquatic plants such as azolla, water hyacinth and alligator weed.
The rectangular cells were densely vegetated with water smartweed, johnsongrass, and alligator weed.
A program on freshwater floating aquatic weeds, implemented by CSIRO Entomology in the 1970s, has seen biological control successes over salvinia, alligator weed and water lettuce in Australia.