Plants › knotweed family
Leathery Knotweed
Polygonum achoreum
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
Prostrate KnotweedPolygonum aviculare
Oval Leaf KnotweedPolygonum arenastrum
Common PurslanePortulaca oleracea
Erect KnotweedPolygonum erectum
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 891 |
|---|---|
| Canada | 779 |
| Ontario | 300 |
| Quebec | 178 |
| Minnesota | 161 |
| Wisconsin | 135 |
| Michigan | 115 |
| Alberta | 77 |
| British Columbia | 72 |
| Northwest Territories | 57 |
Counts show where people looked, not only where it lives.
Traits
Group and habits
- Forb or herb growth formListed by a harvested source as having a forb or herbaceous growth form.USDA PLANTS Characteristics
- Annual plantListed by a harvested source as having an annual life duration.USDA PLANTS Characteristics
Classification
| Kingdom | Plants · Plantae |
|---|---|
| Phylum | Vascular Plants · Tracheophyta |
| Class | Dicots · Magnoliopsida |
| Order | pinks, cactuses, and allies · Caryophyllales |
| Family | knotweed family · Polygonaceae |
| Genus | knotweeds · Polygonum |
Sources
- Names, taxonomy and observation counts: www.inaturalist.org
- Photos and recordings: the creator and source are on each one.
- Traits: USDA PLANTS Characteristics (U.S. Government work / public domain)
- How much to rely on each source
Remember the name next time.
Practise Leathery Knotweed with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.