Polygonum americanum, commonly called southern jointweed[2] or American jointweed, is a species of flowering plant in the knotweed family. It is native to Southeastern United States extending in scattered locations west to New Mexico. Its preferred habitat is dry, sandy areas.
| Polygonum americanum | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Polygonaceae |
| Genus: | Polygonum |
| Species: | P. americanum
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| Binomial name | |
| Polygonum americanum (Fisch. & C.A.Mey.) T.M.Schust. & Reveal[1]
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| Synonyms | |
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Polygonum americanum was first described in 1845.[3] It was at one time placed in the genus Polygonella (under the name Polygonella americana), but in 2015, following a series of molecular phylogenetic studies, this genus was subsumed into Polygonum.[4][5]
References
edit- ^ "Polygonum serotinum Raf.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-02-28
- ^ Flora of North America
- ^ "Plant Name Details for Polygonum americanum (Fisch. & C.A.Mey.) T.M.Schust. & Reveal", The International Plant Names Index, retrieved 2024-02-24
- ^ Schuster, T.M.; Reveal, J.L. & Kron, K.A. (2011), "Evolutionary Relationships within Polygoneae (Polygonaceae: Polygonoideae)", Taxon, 60: 1653–1666, doi:10.1002/tax.606010, cited in Schuster et al. (2015)
- ^ Schuster, Tanja M.; Reveal, James L.; Bayly, Michael J. & Kron, Kathleen A. (2015), "An updated molecular phylogeny of Polygonoideae (Polygonaceae): Relationships of Oxygonum, Pteroxygonum, and Rumex, and a new circumscription of Koenigia", Taxon, 64 (6): 1188–1208, doi:10.12705/646.5
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