An aquatic plant of a genus that includes the ornamental waterweeds.
- ‘The algae-rich water teems with tadpoles, elodea, and finger-size fish.’
- ‘If the vegetation is primarily coontail or elodea, the stocking rates should be doubled.’
- ‘A couple of oxygenates are anacharis, and elodea.’
Modern Latin, from Greek helōdēs marshy.