Polygonum patulum explained

Polygonum patulum, called tree hogweed, is a species of flowering plant in the knotweed family. It is native to the Mediterranean region, eastern Europe, the Caucasus, Siberia, Central Asia, Mongolia, and the Province of Xinjiang in northwestern China.^[1] ^[2] ^[3] It has also become sparingly naturalized in scattered locations in Australia and North America.^[4] ^[5]

Description

Polygonum patulum is an erect or semi-erect annual herb up to 80cm (30inches) tall. Leaves are green or blue-green, up to 5cm (02inches) long. Flowers are green, pink, or white.^[6]

External links

Notes and References

http://luirig.altervista.org/flora/taxa/index1.php?scientific-name=polygonum+patulum Flora Italiana, Polygonum patulum Bieb.
http://www.plantarium.ru/page/view/item/29483.html Plantarium, Polygonum patulum M. Bieb., Описание таксона, Русскоязычные названия
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=242100128 Flora of China, Polygonum patulum Marschall von Bieberstein, 1808. 展枝萹蓄 zhan zhi bian xu
http://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:apni.taxon:388412# Atlas of Living Australia, Polygonum patulum M.Bieb., Tree Hogweed
http://bonap.net/MapGallery/County/Polygonum%20patulum.png Biota of North America Program 2014 county distribution map
http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242100128 Flora of North America, Polygonum patulum M. Bieberstein, 1808.