EPPO Global Database

Koenigia polystachya(POLPS)

Distribution details in United States of America (Alaska)

Current pest situation evaluated by EPPO on the basis of information dated 2018: Present, restricted distribution
* Alaska Natural Heritage Program (ANHP, 2011): Invasiveness Rank 80/100 http://accs.uaa.alaska.edu/files/invasive-species/Persicaria_wallichii_RANK_POPO5.pdf

* Flora of North America Editorial Committee (2015) Flora of North America North of Mexico. St. Louis, Missouri and Cambridge, Massachusetts, USA: Missouri Botanical Garden and Harvard University Herbaria. http://www.efloras.org/flora_page.aspx?flora_id=1
Situation in neighbouring countries
Country State Status
Canada British Columbia Present, no details view...
Canada Present, restricted distribution view...