Inventaire macrophytes Le ruisseau du Riau à Villeneuve-sur-Allier
| Taxon | Code |
|---|---|
| Agrostis stolonifera | AGRSTO |
| Callitriche stagnalis | CALSTA |
| Carex pseudocyperus | CARPSE |
| Glechoma hederacea | GLEHED |
| Lycopus europaeus | LYCEUR |
| Lysimachia vulgaris | LYSVUL |
| Mentha aquatica | MENAQU |
| Phalaris arundinacea | PHAARU |
| Ranunculus repens | RANREP |
| Scrophularia auriculata | SCRAUR |
| Solanum dulcamara | SOADUL |