Abstract
Three plant associations are presented, from different areas whose structure restored significantly, after the cessation of the anthropo-zoogenic pressure, without the need for specific actions. The association Calthetum laetae- Ligularietum sibiricae N. Ştefan 2007, from Lunca de Sus, is mainly spared from the anthropogenic pressure, but the vegetation series in the area can cause it to have an uncertain future; we believe that there are also natural possibilities for maintenance available. The Dicanthietum ischaemi association from an area of hills has quickly regained its right to populate the biotopes which it is best adapted to cover. The association of Thymo panonici- Chrysopogonetum grylii from an upper terrace of the Siret surprises by its very presence.