We can find here mainly Alyssum and Asperula cynanchica, but also many other.

Underneath the dams, near peninsula Výsadba is important occurrence of Aristolochia clematitis, which is the main food for protected and rare butterfly southern festoon (Zerynthia polyxena). The area under dam called Priesaky is formed mainly of the willow-poplar woods with high occurrence of alders (Alnus glutinosa), white poplar (Populus alba), black poplar (Populus nigra), white willow (Salix alba) and so on. The importance of plant species in Sĺňava is big mainly because it provides the possibility for birds to nest and it is a place for temporary home for many protected species of birds. Important is also the fact, that here occur ten species, which are inscribed in the list of rare and endangered taxons of Slovak flora. C – III – Endangered taxons
1. Centaurium pulchellum
2. Linum austriacum
3. Sagittaria sagittifolia
4. Serophularia umbrosa

C – IV – More important taxons, which need attention
1. Astragalus onobrychis
2. Bidens cernua
3. Butomus umbellatus
4. Cucubalus baccifer
5. Nuphar lutea
6. Valeriana officinalis

4.5 Fauna in Slnava

The most important part of fauna in Sĺňava are birds. Sĺňava lies on main migrating way of birds that, which spreads along Považie (valley along river Váh). Sĺňava is also a crossing, where meet arctic and Mediterranean species. We can see here arctic species as sanderling (Crocethia alba), dunlins and little stints (Calidris ferruginea, alpina and minutus), but also south European species purple heron (Ardea puprurea), great white egret and little egret (Egretta alba, Egretta garzetta), sqacco heron (Aredeola ralloides), bearded titmouse (Panurus biarmicus). Moustached warbler (Lusciniola melanopogon) occurs here also, but it is the edge of his occurrence in northern parts of Europe. From the birds that live near mud were in the area during migration time seen rare species like turnstone (Arenaria interpres), Haematopus ostralegus and fulicarius (Phalaropus lobatus). From others species live here mainly lapwing (Vanellus vanellus), plover (Pluvialis squatarola), jack snipe (Lymnocryptes minimus), and during the time of migration are not rare red-throated diver (Gavia stellata), black-throated diver (Gavia arctica), red-necked and other grebes (Podiceps cristatus, griseigena). Often is nest here wild gooses (Anser anser, Anser albifrons). During the autumn nest here ducks, which meet on the level of the water basin in big amounts. It is not rare to see a crowd of 6000- 8000 wild ducks. But the beats of prey decrease in amount year by year.