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Plants › knotweed family

water smartweed

Persicaria amphibia

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Wildlife study photograph from iNaturalist.
(c) brentturcotte, some rights reserved (CC BY-NC)

28 photos

Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.

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Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in Alaska.January 12,221, February 9,027, March 14,143, April 22,250, May 32,080, June 34,981, July 37,432, August 32,192, September 23,634, October 17,641, November 9,640, December 7,534.
United States269,244
Alaska252,776
Canada10,083
Ontario5,683
Russia3,440
California1,575
New York1,483
United Kingdom1,354
British Columbia1,164
England1,125

Counts show where people looked, not only where it lives.

Traits

Group and habits

Edibility, toxicity and medicinal traits are records from datasets, not advice. Never eat, handle or use a wild species on the strength of an app.

Classification

KingdomPlants · Plantae
PhylumVascular Plants · Tracheophyta
ClassDicots · Magnoliopsida
Orderpinks, cactuses, and allies · Caryophyllales
Familyknotweed family · Polygonaceae
Genusknotweeds, smartweeds, and waterpeppers · Persicaria

Sources

Remember the name next time.

Practise water smartweed with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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