Wamberal Lagoon Nature Reserve has the largest remnants of littoral rainforest on the Central Coast subject to the State Environmental Planning Policy 26 – Littoral Rainforests (SEPP 26) as well as:
- significant wetlands listed under SEPP 14 – Coastal Wetlands
- threatened sea grass beds
- ten vegetation communities
- a system of refuge areas for native plant and animal communities on the Central Coast.
In addition, the Wamberal Lagoon Nature Reserve protects a large range of threatened flora including two threatened flora species:
- Syzygium Paniculatum which is only found in three other reserves, and
- Chamaesyce Psammogeton.
- paperbarks (Melaleuca spp)
- banksias (Banksia serrata, Banksia Integrifolia) and
- the mesic cheesetree (Glochidion Ferdinandi).
Elsewhere there are tracts of melaleuca closed shrubland, reedbeds and sedgelands.
On the north-western boundary fresh water seepage from the cemetery supports herbland containing Haloragis sp. and Vphaerolobium vimineum.