Polygonum arenarium
European Knotweed, Lesser Red Knotgrass
Also known as: Polygonum debeauxii Legrand
- Polygonum debeauxii Legrand
Botanical Data
- Taxonomic Rank: Species
- Botanical Family: Polygonaceae
- WCVP Morphological Data: Recorded natively as a annual.
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Polygonum arenarium (commonly known as European Knotweed or Lesser Red-Knotgrass) is an annual within the Polygonaceae family. It originates in Africa, Temperate Asia, and Europe. Within its native range, this species is primarily associated with temperate conditions. There are naturally occurring subspecies of this species, which are linked below.
Macro Climate
Temperate
Plant Type
Annual
Native Range
Continents (WGSRPD)
AFRICA, ASIA-TEMPERATE, EUROPE
Regions (WGSRPD)
Caucasus, Eastern Europe, Middle Asia, Middle Europe, Northern Africa, Southeastern Europe, Southwestern Europe, Western Asia
Botanical Countries (WGSRPD L3)
Albania, Bulgaria, Czechoslovakia, East Aegean Is., East European Russia, France, Greece, Hungary, Iran, Iraq, Italy, Kazakhstan, Krym, Lebanon-Syria, Morocco, North Caucasus, Palestine, Romania, South European Russia, Tadzhikistan, Transcaucasus, Turkey, Turkey-in-Europe, Turkmenistan, Ukraine, Uzbekistan, Yugoslavia
Introduced Range
An “Introduced” distribution indicates that the plant is recorded outside its native range in that region as a result of deliberate or accidental human introduction. Introduced records may include casual, naturalized or invasive populations, but do not include plants that are only cultivated or planted without self-sustaining populations.
Botanical Countries (Non-Native)
Argentina South, Baltic States, Central European Russia, Germany, Great Britain, Ireland
Subspecies, Varieties & Forms