close up of the aquatic plant ceratophyllum coontails, hornworts floating on the surface of the water in a pond. europe

water aquatic plant surface europe poland pond ceratophyllum natural color background outdoor closeup nature texture green cosmopolitan flora ranidae ceratophyllaceae nodes coontails hornworts submerged piece float marsh stream branch pattern vegetation summer spring leaf floral environment cover garden river carpet botany sunlight stem fauna lake hornwort muddy orange fish rigid coontail