Salvinia natans (4811' N 1626' E)

Description:

2010.07.28 Vienna II. district (bayou in Vienna Prater - Mauthnerwasser 156 m).Species introduced in the habitat by (most likely) fishkeepers who disposed of their aquarium and its content there.German name: Gewhnlich-SchwimmfarmID: Fischer & al., Exkursionsflora A/FL/SdT (2008 3rd), who also mention the very same habitat where, it seems, this species is able to sustain itself