Polygonum argyrocoleon

Steud. ex Kuntze

Silversheath knotweed

PolygonaceaeSeeds/Nuts
Polygonum argyrocoleon
iNaturalist · cc-by-nc
(c) Ron Frumkin, some rights reserved (CC BY-NC), uploaded by Ron Frumkin
Polygonum argyrocoleon
iNaturalist · cc-by-nc
(c) Jacques Turner-Moss, some rights reserved (CC BY-NC), uploaded by Jacques Turner-Moss
Polygonum argyrocoleon
iNaturalist · cc-by-nc-sa
(c) Smithsonian Institution, National Museum of Natural History, Department of Botany, some rights reserved (CC BY-NC-SA)

What to Eat

Edible parts: Seeds

The seeds are parched and ground before eating.

Where to Find It

It is a temperate plant. In northern China it grows between 200-2,500 m above sea level.

Afghanistan, Asia, Central Asia, China, Kazakhstan, Kyrgyzstan, Mongolia, North America, Russia, Tajikistan, Turkmenistan, USA, Uzbekistan,

Countries: United Arab Emirates, Afghanistan, Antigua & Barbuda, Armenia, Azerbaijan, Barbados, Bangladesh, Bahrain, Brunei, Bahamas, Bhutan, Belize, Canada, China, Costa Rica, Cuba, Dominica, Dominican Republic, Grenada, Georgia, Guatemala, Honduras, Haiti, Indonesia, Israel, India, Iraq, Iran, Jamaica, Jordan, Japan, Kyrgyzstan, Cambodia, St Kitts & Nevis, North Korea, South Korea, Kuwait, Kazakhstan, Laos, Lebanon, St Lucia, Sri Lanka, Myanmar, Mongolia, Maldives, Mexico, Malaysia, Nicaragua, Nepal, Oman, Panama, Philippines, Pakistan, Puerto Rico, Qatar, Russia, Saudi Arabia, Singapore, El Salvador, Syria, Thailand, Tajikistan, Timor-Leste, Turkmenistan, Turkey, Trinidad & Tobago, Taiwan, United States, Uzbekistan, St Vincent, Vietnam, Yemen

How to Identify

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.

Wikipedia

Source ↗

Polygonum argyrocoleon, with common names silver-sheath knotweed and Persian knotweed, is an Asian species of plants in the buckwheat family. It is native to Siberia, western China, Central Asia, and the Middle East. It has also become naturalized in parts of the United States, primarily the Southwest, and northwestern Mexico. Polygonum argyrocoleon is an annual herb up to 80 cm (31 in) tall. It has very small leaves rarely more than 5 cm (2.0 in) long.

Names & Synonyms
Polygonum deciduum Boiss. & Noe ex Meissn.
References (2)
  • Flora of China @ efloras.org Volume 5
  • Moerman, D. F., 2010, Native American Ethnobotany. Timber Press. p 423

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