Polygonum ciliinode

Polygonum ciliinode (synonym Fallopia ciliinodis[1]) is a species of flowering plant in the family Polygonaceae, native to central and eastern Canada, and the north-central and eastern United States.[1] The specific epithet is also spelt cilinode.[2]

Polygonum ciliinode
Drawing from the 1913 illustrated flora of the northern United States, Canada and the British Possessions
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Polygonum
Species:
P. ciliinode
Binomial name
Polygonum ciliinode
Synonyms[1]
  • Bilderdykia ciliinodis (Michx.) Greene
  • Fallopia ciliinodis (Michx.) Holub
  • Helxine ciliinode Raf.
  • Reynoutria ciliinodis (Michx.) Shinners
  • Tiniaria ciliinodis (Michx.) Small

Taxonomy

The species was first described by André Michaux in 1803.[2] Michaux spelt the epithet "cilinode".[3] Article 60 of the International Code of Nomenclature for algae, fungi, and plants requires the correction of improperly formed "compounding forms",[4] and the International Plant Names Index has corrected it to "ciliinode".[2]

Polygonum ciliinode is part of the tribe Polygoneae of the subfamily Polygonoideae.[5] However, like many species in the family Polygonaceae, it has been placed in different genera within this group, including in Fallopia and Reynoutria.[2] A 2015 molecular phylogenetic study (in which the species was treated as Fallopia cilinodis) found that it was weakly supported as a sister to the "DAP clade" (see the following cladogram), although plastid data alone placed it in the "RMF clade". The presence of extra-floral nectaries in Polygonum ciliinode suggests a relationship with the RMF clade, as this is one of the characteristics of the clade. Its relationships remain unsettled; it may represent an as-yet-unrecognized lineage in the Polygoneae.[5]

Polygoneae
 

Knorringia

 
 
 
 

Polygonum ciliinode (syn. Fallopia ciliinodis)

 
DAP clade
 

Duma

 
 
 

Atraphaxis

 
 

Polygonum

 
 
 
 
RMF clade
 

Reynoutria

 
 
 

Muehlenbeckia

 
 

Fallopia s.s.

 
 
 
 
 
gollark: Also quite cheap, despite that.
gollark: It's still very shiny, however.
gollark: ↑ bismuth
gollark: https://images-na.ssl-images-amazon.com/images/I/91sH6b1UhFL._AC_SL1500_.jpg
gollark: Bismuth is a far superior element.

References
  1. "Polygonum cilinode Michx.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-03-04
  2. "Plant Name Details for Polygonum ciliinode Michx.", The International Plant Names Index, retrieved 2019-03-04
  3. Michaux, Andreas (1803), "Polygonum cilinode", Flora boreali-americana, sistens caracteres plantarum quas in America septentrionali collegit et detexit Andreas Michaux (in Latin), 1, Paris: Levrault, p. 241, retrieved 2019-03-04
  4. Turland, N.J.; et al., eds. (2018), "Art. 60", International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017 (electronic ed.), Glashütten: International Association for Plant Taxonomy, retrieved 2019-03-04
  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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