| [19924] Plagiothecium succulentum | Appellations de Taxon | 19924 |
| [19925] Plagiothecium undulatum | Appellations de Taxon | 19925 |
| [19926] Plantago maritima | Appellations de Taxon | 19926 |
| [19927] Pleuropogon sabinei | Appellations de Taxon | 19927 |
| [19928] Poa pratensis | Appellations de Taxon | 19928 |
| [19929] Pohlia wahlenbergii | Appellations de Taxon | 19929 |
| [1993] Peucedanum | Appellations de Taxon | 1993 |
| [19930] Polygonum foliosa | Appellations de Taxon | 19930 |
| [19931] Pontederia cordata | Appellations de Taxon | 19931 |
| [19932] Porella cordaeana | Appellations de Taxon | 19932 |
| [19933] Potamogeton epihydrus | Appellations de Taxon | 19933 |
| [19934] Potamogeton filiformis | Appellations de Taxon | 19934 |
| [19935] Potamogeton lucens x natans | Appellations de Taxon | 19935 |
| [19936] Potamogeton lucens x perfoliatus | Appellations de Taxon | 19936 |
| [19938] Potamogeton natans x nodosus | Appellations de Taxon | 19938 |
| [19939] Potamogeton rutilus | Appellations de Taxon | 19939 |
| [19940] Potamogeton schweinfurthii | Appellations de Taxon | 19940 |
| [19942] Potamogeton vaginatus | Appellations de Taxon | 19942 |
| [19944] Potamogeton x bennettii | Appellations de Taxon | 19944 |
| [19945] Potamogeton x bottnicus | Appellations de Taxon | 19945 |
| [19946] Potamogeton x cognatus | Appellations de Taxon | 19946 |
| [19947] Potamogeton x cooperi | Appellations de Taxon | 19947 |
| [19948] Potamogeton x fennicus | Appellations de Taxon | 19948 |
| [19949] Potamogeton x fluitans | Appellations de Taxon | 19949 |
| [1995] Sium | Appellations de Taxon | 1995 |
| [19950] Potamogeton x gessnacensis | Appellations de Taxon | 19950 |
| [19951] Potamogeton x griffithii | Appellations de Taxon | 19951 |
| [19952] Potamogeton x lanceolatus | Appellations de Taxon | 19952 |
| [19953] Potamogeton x lintonii | Appellations de Taxon | 19953 |
| [19954] Potamogeton x nerviger | Appellations de Taxon | 19954 |
| [19955] Potamogeton x olivaceus | Appellations de Taxon | 19955 |
| [19956] Potamogeton x salicifolius | Appellations de Taxon | 19956 |
| [19957] Potamogeton x schreberi | Appellations de Taxon | 19957 |
| [19958] Potamogeton x sparganifolius | Appellations de Taxon | 19958 |
| [19959] Potamogeton x sudermanicus | Appellations de Taxon | 19959 |
| [1996] Sium angustifolium | Appellations de Taxon | 1996 |
| [19960] Potamogeton x suecicus | Appellations de Taxon | 19960 |
| [19961] Potamogeton x undulatus | Appellations de Taxon | 19961 |
| [19962] Preissia quadrata | Appellations de Taxon | 19962 |
| [19963] Racomitrium aquaticum | Appellations de Taxon | 19963 |
| [19964] Ranunculus batrachoides | Appellations de Taxon | 19964 |
| [19965] Ranunculus flammula subsp. flammula | Appellations de Taxon | 19965 |
| [19966] Ranunculus flammula subsp. minimus | Appellations de Taxon | 19966 |
| [19967] Ranunculus flammula subsp. scoticus | Appellations de Taxon | 19967 |
| [19968] Ranunculus fluitans x aquatilis | Appellations de Taxon | 19968 |
| [19969] Ranunculus fluitans x trichophyllus | Appellations de Taxon | 19969 |
| [1997] Sium latifolium | Appellations de Taxon | 1997 |
| [19970] Ranunculus hyperboreus | Appellations de Taxon | 19970 |
| [19971] Ranunculus lingua | Appellations de Taxon | 19971 |
| [19972] Ranunculus peltatus subsp. fucoides | Appellations de Taxon | 19972 |