Polygonum cognatum
Indian Knotgrass
Also known as: Polygonum alpestre var. ammanoides (Jaub. & Spach) Boiss.
- Polygonum alpestre var. ammanoides (Jaub. & Spach) Boiss.
Botanical Data
- Taxonomic Rank: Species
- Botanical Family: Polygonaceae
- WCVP Morphological Data: Recorded natively as a perennial.
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Polygonum cognatum (commonly known as Indian Knotgrass) is a herbaceous perennial belonging to the Polygonaceae family. Originating in Temperate Asia and Tropical Asia, this species is primarily associated with temperate conditions. There are naturally occurring subspecies and varieties of this species, which are linked below.
Macro Climate
Temperate
Plant Type
Herbaceous Perennial
Native Range
Continents (WGSRPD)
ASIA-TEMPERATE, ASIA-TROPICAL
Regions (WGSRPD)
Caucasus, China, Indian Subcontinent, Middle Asia, Mongolia, Siberia, Western Asia
Botanical Countries (WGSRPD L3)
Afghanistan, Altay, Inner Mongolia, Iran, Iraq, Kazakhstan, Kirgizistan, Lebanon-Syria, Mongolia, Nepal, North Caucasus, Pakistan, Palestine, Tadzhikistan, Transcaucasus, Turkey, Turkmenistan, Uzbekistan, West Himalaya, Xinjiang
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)
Baltic States, Bulgaria, France, Great Britain
Subspecies, Varieties & Forms