Genus Persicaria (L.) Mill.


Summary
Genus number:
15859
Last updated:
4 November 2011
Family:
Polygonaceae
Subfamily:
Polygonoideae
Tribe:
Persicarieae
Common name(s):

knotweed, smartweed
Accession count:

55 (28  active, 8  available) in National Plant Germplasm System
Comments:
Persicaria J. Hill (1753), nom. inval.


Synonyms
Synonym(s) Possible synonym(s)

Images (3 total. Click on image for more.)
Fruit

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References:
  1. FNA Editorial Committee. 1993-. Flora of North America. Note: accepts
  2. Greuter, W. et al., eds. 1984-. Med-Checklist. Note: accepts
  3. Iwatsuki, K. et al. 1993-. Flora of Japan. Note: accepts
  4. Kim, S.-T. & M. J. Donoghue. 2008. Molecular phylogeny of Persicaria (Persicarieae, Polygonaceae). Syst. Bot. 33:77-86. www.aspt.net/systematic-botany
  5. Ronse Decraene, L.-P. & J. R. Akeroyd. 1988. Generic limits in Polygonum and related genera (Polygonaceae) on the basis of floral characters. Bot. J. Linn. Soc. 98:330. Note: accepts
  6. Tutin, T. G. et al., eds. 1993. Flora europaea, ed. 2. Note: = Polygonum L.
  7. Wilson, K. L. 1990. Some widespread species of Persicaria (Polygonaceae) and their allies. Kew Bull. 45:621-636. Note: accepts
  8. Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). Note: = Polygonum L.
Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomygenus?id=15859. Accessed 17 April 2026.