Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Persicaria hydropiperoides
knotweed, mild waterpepper, false water pepper
Domain
Eukaryota
Kingdom
Plantae
Phylum
Magnoliophyta
Class
Magnoliopsida (= Dicotyledoneae)
Order
Polygonales
Family
Polygonaceae
Genus
Persicaria
Species
hydropiperoides
Taxon category: Accepted
Syn.: Polygonum opelousanum Riddell ex Small. (POWO, 2022) ; Syn.: Polygonum hydropiperoides Michx., P. opelousanum Riddell ex Small fide Royal Botanic Gardens, Kew & Missouri Botanical Garden (2010).
Origin: Native
Map of specimen collection localities or observation records for this species in our collections database.
- Itow, S. (1997) List of Plant Specimens collected in the Galápagos Islands, Ecuador. Bulletin of the Faculty of Liberal Arts, Nagasaki University, Natural Science, 38 (1): 53-144.
- Royal Botanic Gardens, Kew (2022) Plants of the world online POWO (2022): Plants of the world online. Published on the Internet; Https://powo.science.kew.org/
- Royal Botanic Gardens, Kew Missouri Botanical Garden (eds.) (2013) The Plant List, Version 1.1. Published on the Internet; http://www.theplantlist.org/ (accessed 1st January).
- Svenson, H.K. (1935) Plants of the Astor Expedition, 1930 (Galapagos and Cocos Islands). Am. J. Bot. 22: 208-277.
- Tropicos.org. (2017) Database of Missouri Botanical Garden. Tropicos.org. Missouri Botanical Garden. 06 Oct 2017 <http://www.tropicos.org
- Van der Werff, H.H. (s.a.) Pers. obs. and colls. Personal observations and collections.
- Wiggins, I.L. Porter, D.M. (1971) Flora of the Galapagos Islands Standford University Press, Stanford.
You are welcome to download and use the information found in this page, acknowledging its source.
This page should be cited as follows:
"Galapagos Species Database, Persicaria hydropiperoides", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=15819. Accessed 31 October 2026.