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
Plants flagged as 'Introduced' have been transported outside their native historical range by human activity. While many are common ornamentals, some may become naturalized or invasive in local environments. Local ecological guidelines require verification prior to planting.
Botanical Countries (Non-Native)
Baltic States, Bulgaria, France, Great Britain
Subspecies, Varieties & Forms