''Persicaria elatior'', commonly known as tall knotweed, is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

native Native may refer to: People * '' Jus sanguinis'', nationality by blood * '' Jus soli'', nationality by location of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Nat ...

to eastern Australia. It was one of eleven species selected for the Save a Species Walk campaign in April 2016; scientists walked 300 km to raise money for collection of seeds to be prepared and stored at the Australian PlantBank at the

Australian Botanic Garden Mount Annan The Australian Botanic Garden Mount Annan is a botanical garden located in a hilly area of the South-western Sydney, southwestern Sydney suburb of , between Campbelltown, New South Wales, Campbelltown and Camden, New South Wales, Camden, New S ...

Conservation status

''Persicaria elatior'' is classified as "Vulnerable" under the

Environment Protection and Biodiversity Conservation Act 1999 The ''Environment Protection and Biodiversity Conservation Act 1999'' (Cth) is an Act of the Parliament of Australia that provides a framework for protection of the Australian environment, including its biodiversity and its natural and cult ...

References

Flora of New South Wales Perennial plants elatior {{Polygonaceae-stub