Nature conservation

Threatened species

Tall Knotweed - Sydney Basin: Distribution and vegetation associations

Scientific name: Persicaria elatior
Conservation status in NSW: Vulnerable
Commonwealth status: Vulnerable
Last updated: 30 Aug 2018

Distribution of the species within this region

The Tall Knotweed is known or predicted to occur in the following sub-regions of the Sydney Basin Interim Biogeographic Regionalisation of Australia.

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IBRA sub-region  Known or predictedGeographic restrictions within region
Burragorang Known None
Cumberland Known None
Hunter Known None
Moss Vale Known None
Wyong Known None
Yengo Known None

Vegetation formations, classes and types

In this region the Tall Knotweed - Sydney Basin is known to be associated with the following vegetation formations and classes. Click on a name to get background information about it.

  • Forested wetlands
    • Coastal Floodplain Wetlands
      • Coastal floodplain sedgelands, rushlands, and forblands of the North Coast
      • Cumberland riverflat forest
      • Cumberland Swamp Oak riparian forest
      • Estuarine Swamp Oak forest
      • Melaleuca sieberi - Tall Saw-sedge closed shrubland in drainage lines on the Central Coast, Sydney Basin Bioregion
      • Prickly-leaved Paperbark - Flax-leaved Paperbark swamp forest on poorly drained soils of the Central Coast
      • Swamp Oak - Prickly Paperbark - Tall Sedge swamp forest on coastal lowlands of the Central Coast and Lower North Coast
      • Swamp Oak - Sea Rush - Baumea juncea swamp forest on coastal lowlands of the Central Coast and Lower North Coast
      • Swamp Oak swamp forest of the coastal lowlands of the NSW North Coast Bioregion
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    • Coastal Swamp Forests
      • Broad-leaved Paperbark - Swamp Mahogany - Swamp Oak - Saw Sedge swamp forest of the Central Coast and Lower North Coast
      • Broad-leaved Paperbark - Swamp Oak - Saw Sedge swamp forest on coastal lowlands of the Central Coast and Lower North Coast
      • Melaleuca linariifolia - Swamp Mahogany swamp forest in drainage lines of the edges of the Cumberland Plain, Sydney Basin Bioregion
      • Paperbark swamp forest of the coastal lowlands of the NSW North Coast Bioregion and Sydney Basin Bioregion
      • Paperbarks - Woollybutt swamp forest on coastal lowlands of the Central Coast
      • Prickly-leaved Paperbark forest on coastal lowlands of the Central Coast and Lower North Coast
      • Swamp Box swamp forest of the coastal lowlands of the NSW North Coast Bioregion
      • Swamp Mahogany - Broad-leaved Paperbark - Saw Sedge - Yellow Marsh Flower swamp forest of coastal lowlands
      • Swamp Mahogany - Broad-leaved Paperbark - Swamp Water Fern - Plume Rush swamp forest on coastal lowlands of the Central Coast and Lower North Coast
      • Swamp Mahogany - Flax-leaved Paperbark swamp forest on coastal lowlands of the Central Coast
      • Swamp Mahogany swamp forest on coastal lowlands of the NSW North Coast Bioregion and northern Sydney Basin Bioregion
      • Swamp Oak - Weeping Grass grassy riparian forest of the Hunter Valley
      • Swamp Oak swamp forest on coastal lowlands of the Central Coast and Lower North Coast
      • Swamp paperbark - Baumea juncea swamp shrubland on coastal lowlands of the Central Coast and Lower North Coast
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    • Eastern Riverine Forests
      • River Oak riparian woodland of the NSW North Coast Bioregion and northern Sydney Basin Bioregion
      • River Red Gum / River Oak riparian woodland wetland in the Hunter Valley
  • Freshwater wetlands
    • Coastal Freshwater Lagoons
      • Cladium procerum coastal freshwater wetland
      • Coastal freshwater meadows and forblands of lagoons and wetlands
      • Coastal freshwater wetland
      • Jointed Twig-rush sedgeland
      • Lepironia articulata sedgeland
      • Phragmites australis and Typha orientalis coastal freshwater wetlands of the Sydney Basin Bioregion
      • Soft Twig-rush Sedgeland of North Coast Wallum Swamps
      • Spirodella freshwater wetland
      • Tall Spike Rush freshwater wetland
      • Typha rushland
      • Water Couch - Tall Spike Rush freshwater wetland of the Central Coast and lower Hunter
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    • Coastal Heath Swamps
      • Banksia oblongifolia-Hakea teretifolia/Leptocarpus tenax-Lepyrodia scariosa wet heath on sandstone ranges of the Central Coast
      • Fern-leaf Banksia - Prickly-leaved Paperbark-Tantoon - Leptocarpus tenax wet heath on coastal sands of the Central Coast and lower North Coast
      • Needlebush - banksia wet heath on sandstone plateaux of the Sydney Basin Bioregion
      • Wallum Bottlebrush - Leptocarpus tenax - Baloskion pallens Wallum sedge heath of the lower North Coast
      • Wet heathland and shrubland of coastal lowlands of the NSW North Coast Bioregion
      • Woolly Water lily - Sand Couch coastal freshwater wetland
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