Silversheath knotweed
Polygonum argyrocoleon
Family: Polygonaceae
What it is like
A herb. It grows each year from seed. The stems are erect and 50-80 cm tall. They are angular and branch. They are inflated at the nodes.
Where it is found
It is a temperate plant. In northern China it grows between 200-2,500 m above sea level.
Countries/locations it is found in
Afghanistan, Asia, Central Asia, China, Kazakhstan, Kyrgyzstan, Mongolia, North America, Russia, Tajikistan, Turkmenistan, USA, Uzbekistan
How it is used for food
The seeds are parched, ground and eaten.
Edible parts
Seeds
How it is grown
Its other names
Local names
Synonyms
Polygonum deciduum Boiss. & Noe ex Meissn.;