Polygonum aviculare L., 1753
🇬🇧 Knotgrass
🇫🇷 Renouée des oiseaux, Renouée Traînasse, Traînasse
Taxonomy
- Kingdom: Plantae
- Clade: Tracheophytes
- Clade: Angiosperms
- Clade: Eudicots
- Clade: Superasterids
- Order: Caryophyllales
- Family: Polygonaceae
- Subfamily: Polygonoideae
- Tribe: Polygoneae
- Subtribe: Polygoninae
- Genus: Polygonum
- Species: Polygonum aviculare
Presence
Present.
Conservation status
- Red List (Metropolitan France): LC Least Concern
- Red List (Europe): LC Least Concern
Notes
Possible confusion with P. arenastrum Boreau, 1857, whose tepals are joined on more than 40% of their length, while those of P. aviculare are joined on less than 40% of their length.
Possible confusion with P. rurivagum Jord. ex Boreau, 1857, whose leaves are narrower (length/width ratio > 8), while those of P. aviculare are broader (length/width ratio < 8).
Photographs





Sources
Khela, S. (2012). Polygonum aviculare (Europe assessment). The IUCN Red List of Threatened Species, 2012. https://www.iucnredlist.org/species/203393/2764857
Tison, J.M., & de Foucault, B. (2014). Flora Gallica : Flore de France (p. 918). Biotope.