Water-pepper, water pepper or marshpepper knotweed (Persicaria hydropiper, syn. Polygonum hydropiper) is a plant of the family Polygonaceae. It grows in damp places and shallow water. It is a widespread plant, found in Australia, New Zealand, temperate Asia, Europe, and North America. It has some use as a spice because of its pungent flavor.
Photo: @drakiragavon · iNaturalist · CC BY-NC
Waterpepper
Persicaria hydropiper
- Observations in the area
- 1
- Last sighting
- 14 March 2025
- Category
- Plants
Species and sighting data come from the iNaturalist platform and may change over time.
Where it has been observed
More photos
Photo: Татьяна Горбушина · iNaturalist · CC0
Photo: V.S. Volkotrub · iNaturalist · CC BY-NC
Photo: Serge M. Appolonov · iNaturalist · CC BY-NC
Photo: Mathew Robinson · iNaturalist · CC0
Photo: Yury Kvach · iNaturalist · CC BY-NC
Photo: James Bailey · iNaturalist · CC BY-NC
Photo: @elenasuslova · iNaturalist · CC BY-NC
Photo: @kjsytsma · iNaturalist · CC BY-NC
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Photo: @Gregorio.gc · iNaturalist · CC BY-SA
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Photo: @anonymous · iNaturalist · CC BY-SA
Nature data: iNaturalist
Sighting data also come from open nature platforms and may change over time.