All Species in Lemna
- Common Duckweed (Lemna minor)
- Least Duckweed (Lemna minuta)
- Lemna bistrosa (Lemna bistrosa)
- Lemna disperma (Lemna disperma)
- Lemna landoltii (Lemna landoltii)
- Lemna tenera (Lemna tenera)
- Lemna × japonica (Lemna × japonica)
- Lesser Duckweed (Lemna aequinoctialis)
- Little Duckweed (Lemna obscura)
- Minute Duckweed (Lemna perpusilla)
- Star Duckweed (Lemna trisulca)
- Swollen Duckweed (Lemna gibba)
- Turion Duckweed (Lemna turionifera)
- Valdivia Duckweed (Lemna valdiviana)