Plants › knotweed family
Far Eastern smartweed
Persicaria extremiorientalis
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.
Photos you add are credited to you, and you keep the copyright.
Easily confused with
low smartweedPersicaria longiseta
pale smartweedPersicaria lapathifolia
spotted lady's thumbPersicaria maculosa
pinkweedPersicaria pensylvanica
slender knotweedPersicaria decipiens
kiss-me-over-the-garden-gatePersicaria orientalis
American jumpseedPersicaria virginiana
waterpepperPersicaria hydropiper
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 1,656 |
|---|---|
| Massachusetts | 726 |
| New York | 550 |
| New Hampshire | 243 |
| New Jersey | 213 |
| Rhode Island | 94 |
| Connecticut | 90 |
| Vermont | 69 |
| Maine | 63 |
| Virginia | 60 |
Counts show where people looked, not only where it lives.
Classification
| Kingdom | Plants · Plantae |
|---|---|
| Phylum | Vascular Plants · Tracheophyta |
| Class | Dicots · Magnoliopsida |
| Order | pinks, cactuses, and allies · Caryophyllales |
| Family | knotweed family · Polygonaceae |
| Genus | knotweeds, smartweeds, and waterpeppers · Persicaria |
Sources
- Names, taxonomy and observation counts: www.inaturalist.org
- Photos and recordings: the creator and source are on each one.
- How much to rely on each source
Remember the name next time.
Practise Far Eastern smartweed with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.