Polygonum
Sign in to savePolygonum is a genus of about 130 species of flowering plants in the buckwheat and knotweed family Polygonaceae. Common names include knotweed and knotgrass (though the common names may refer more broadly to plants from Polygonaceae). In the Middle English glossary of herbs Alphita ( 1400–1425), it was known as ars-smerte. There have been various opinions about how broadly the genus should be defined. For example, buckwheat (Fagopyrum esculentum) has sometimes been included in the genus as Polygonum fagopyrum. Former genera such as Polygonella have been subsumed into Polygonum; other genera ha
AI overview
Polygonum is a genus containing about 130 species of flowering plants belonging to the buckwheat family, commonly known as knotweed or knotgrass. The genus has had a shifting scientific definition over time, with some plants being reclassified into or out of it as botanists have refined their understanding of how these plants should be grouped.
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Taxonomy · GBIF
GENUS
- KingdomPlantae
- PhylumTracheophyta
- ClassMagnoliopsida
- OrderCaryophyllales
- FamilyPolygonaceae
via GBIF · CC0
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Polygoneae
- Image
- Polygonum persicaria.jpg
Show 4 more facts
- P105
- genus
Article
16 sectionsContents
- Description
- Taxonomy
- Classification and phylogeny
- Species
- Reclassified species
- ''Polygonum'' species that have been reclassified as ''Bistorta''
- ''Polygonum'' species that have been reclassified as ''Fagopyrum''
- ''Polygonum'' species that have been reclassified as ''Fallopia''
- ''Polygonum'' species that have been reclassified as ''Koenigia''
- ''Polygonum'' species that have been reclassified as ''Persicaria''
- ''Polygonum'' species that have been reclassified as ''Reynoutria''
- Unresolved species
- Uses
- References in literature
- References
- External links
Polygonum is a genus of about 130 species of flowering plants in the buckwheat and knotweed family Polygonaceae. Common names include knotweed and knotgrass (though the common names may refer more broadly to plants from Polygonaceae). In the Middle English glossary of herbs Alphita ( 1400–1425), it was known as ars-smerte. There have been various opinions about how broadly the genus should be defined. For example, buckwheat (Fagopyrum esculentum) has sometimes been included in the genus as Polygonum fagopyrum. Former genera such as Polygonella have been subsumed into Polygonum; other genera have been split off.
The genus primarily grows in northern temperate regions. The species are very diverse, ranging from prostrate herbaceous annual plants to erect herbaceous perennial plants.