Also found in: Thesaurus.
Related to alligator grass: bear grass
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|Noun||1.||alligator grass - 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