Polygonum serotinum

Polygonum serotinum, 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 serotinum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Polygonum
Species:
P. serotinum
Binomial name
Polygonum serotinum
Raf.[1]
Synonyms
  • Gonopyrum americanum Fisch. & C.A.Mey.
  • Pleurostena serotina (Raf.) Raf.
  • Polygonella americana (Fisch. & C.A.Mey.) Small
  • Polygonella ericoides Engelm. & A.Gray
  • Polygonella meissneriana Shuttlew. ex Meisn.
  • Polygonella serotina (Raf.) House
  • Polygonum americanum (Fisch. & C.A.Mey.) T.M.Schust. & Reveal
  • Psammogonum americanum (Fisch. & C.A.Mey.) Nieuwl.

Polygonum serotinum was first described in 1820 by Constantine Samuel Rafinesque.[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]

Line drawing

References
  1. "Polygonum serotinum Raf.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-02-28
  2. Flora of North America
  3. "Plant Name Details for Polygonum serotinum Raf.", The International Plant Names Index, retrieved 2019-02-28
  4. Schuster, T.M.; Reveal, J.L. & Kron, K.A. (2011), "Evolutionary Relationships within Polygoneae (Polygonaceae: Polygonoideae)", Taxon, 60: 1653–1666, cited in Schuster et al. (2015)
  5. 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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