Trailing Knotweed,
Creeping Knotweed
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Regional Species Conservation Assessments per IBRA subregion.


Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
Display IBRA region text
Mount Gambier (SVP02) | Southern Volcanic Plain | Near Threatened [increases as swamps dry out] |
Bridgewater (NCP01) | Naracoorte Coastal Plain | Rare (IUCN: RA d(i,ii)) (Probable Decline) [redgum, swamp gum spp. edge of range] |
Glenelg Plain (NCP02) | | Least Concern |
Lucindale (NCP03) | | Near Threatened |
Tintinara (NCP04) | | Rare (IUCN: RA d(ii)) [edge of range] |
Kangaroo Island (KAN01) | Kanmantoo | Near Threatened [reservoirs & water bodies (dams)] |
Fleurieu (KAN02) | | Near Threatened [reservoirs & water bodies (dams)] |
Mount Lofty Ranges (FLB01) | Flinders Lofty Block | Least Concern [reservoirs & water bodies (dams)] |
Broughton (FLB02) | | Least Concern (Probable Increase) |
Southern Flinders (FLB04) | | Rare (IUCN: RA d(ii)) |
St Vincent (EYB02) | Eyre Yorke Block | Rare (IUCN: RA d(ii)) |
Eyre Hills (EYB03) | | Rare (IUCN: RA d(ii)) |
South Olary Plain (MDD01) | Murray Darling Depression | Rare (IUCN: RA d(i,ii)) [turns up in dams - natural intro] |
Murray Mallee (MDD02) | | Vulnerable (IUCN: VU B2ab(i,ii,iii)) (Probable Decline) |
Lowan Mallee (MDD04) | | Rare (IUCN: RA d(ii)) [turns up in dams - natural intro] |
Wimmera (MDD05) | | Rare (IUCN: RA d(i,ii)) [edge of range] |
Murray Scroll Belt (RIV06) | Riverina | Vulnerable (IUCN: VU B2ab(i,ii,iii)) (Probable Decline) |
Myall Plains (GAW01) | Gawler | Rare (IUCN: RA d(ii)) |
Gawler Volcanics (GAW02) | | Rare (IUCN: RA d(ii)) |
Gawler Lakes (GAW03) | | Rare (IUCN: RA d(ii)) |
Sturt Stony Desert (CHC02) | Channel Country | Rare (IUCN: RA d(ii)) [outlier; flood spp] |
Mount Gambier (SVP02) | Southern Volcanic Plain | Near Threatened [increases as swamps dry out] |
4 of 4 subregions | Naracoorte Coastal Plain | Least Concern , Near Threatened , Rare |
2 of 2 subregions | Kanmantoo | Near Threatened |
3 of 6 subregions | Flinders Lofty Block | Least Concern , Rare |
2 of 5 subregions | Eyre Yorke Block | Rare |
4 of 6 subregions | Murray Darling Depression | Rare , Vulnerable |
Murray Scroll Belt (RIV06) | Riverina | Vulnerable (IUCN: VU B2ab(i,ii,iii)) (Probable Decline) |
3 of 8 subregions | Gawler | Rare |
Sturt Stony Desert (CHC02) | Channel Country | Rare (IUCN: RA d(ii)) [outlier; flood spp] |
Botanical art
Kath Alcock painting: 1
Prior names
Polygonum prostratum
Common names
Trailing Knotweed
Creeping Knotweed
Distribution and status
Herbarium regions: Lake Eyre, Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Southern Lofty, Kangaroo Island, Green Adelaide
AVH map: SA distribution map (external link)
Location | No. of seeds (weight grams) | Number of plants | Date collected | Collection number Collection location | Date stored | % Viability | Storage temperature | BGA MSB | 5,050 (6.59 g) 5,050 (6.59 g) | 50 | 8-Jan-2007 | RJB71000 Northern Lofty | 1-Aug-2007 | 100% | -18°C |
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.