The composition and extent of the present vegetation within the Diamunga, Pinegrove and Old Toulby additions to Culgoa National Park is described and mapped. Forty quadrat-based sites were sampled, with intensive field traverses and aerial photograph interpretation. Five vegetation communities are described and 190 taxa of vascular plants recorded, thirteen of which are considered to be rare and threatened or regionally significant (nineteen including previous survey records). VIS_ID 870