 The national park is listed as being a biodiversity hotspot containing 429 species although this number is likely to rise due to further surveying of the area.Of these species 5 are threatened they include the endangered Wilsonia rotundifolia, vulnerable Wilsonia backhousia, Syzygium paniculatum, Cryptostylis hunteriana and Galium australe which was believed to be extinct in NSW.A further 8 significant species occur in the park, along with Grevillea macleayana and Pultenaea villifera which are on the national register of rare or threatened Australian plants .