Noun: Alternanthera philoxeroides
- Prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses
"Alternanthera philoxeroides choked the irrigation canal";
- alligator weed, alligator grass
Type of: weed
Part of: Alternanthera, genus Alternanthera
Encyclopedia: Alternanthera philoxeroides