Inventaire macrophytes Le Gers amont confluent avec la Garonne
| Taxon | Code |
|---|---|
| Cyperaceae | |
| Agrostis stolonifera | AGRSTO |
| Amblystegium riparium | AMBRIP |
| Carex cuprina | CARCUP |
| Carex remota | CARREM |
| Cinclidotus fontinaloides | CINFON |
| Cinclidotus riparius | CINRIP |
| Cladophora | CLASPX |
| Conocephalum conicum | CONCON |
| Cratoneuron filicinum | CRAFIL |
| Equisetum arvense | EQUARV |
| Eurhynchium hians | EURHIA |
| Eurhynchium | EURSPX |
| Hedera helix | HEDHEL |
| Hildenbrandia | HILSPX |
| Jacobaea aquatica | JACAQU |
| Leersia oryzoides | LEEORY |
| Lemna minor | LEMMIN |
| Lemna minuta | LEMMIT |
| Leptodictyum riparium | LEORIP |
| Lycopus europaeus | LYCEUR |
| Melosira | MELSPX |
| Myriophyllum spicatum | MYRSPI |
| Octodiceras fontanum | OCTFON |
| Oedogonium | OEDSPX |
| Oscillatoria | OSCSPX |
| Pellia endiviifolia | PELEND |
| Persicaria | PERSPX |
| Phalaris arundinacea | PHAARU |
| Phormidium | PHOSPX |
| Poa | POASPX |
| Ranunculus repens | RANREP |
| Rhynchostegium riparioides | RHYRIP |
| Scutellaria galericulata | SCUGAL |
| Solanum dulcamara | SOADUL |
| Spirogyra | SPISPX |
| Spirodela polyrhiza | SPRPOL |
| Vaucheria | VAUSPX |