We found 1 definitions of alligator grass from 1 different sources.
Noun |
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alligator grass - prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses | ||
alligator weed, Alternanthera philoxeroides | ||
weed a black band worn by a man (on the arm or hat) as a sign of mourning |