Plants › knotweed family
China knotweed
Persicaria chinensis
25 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
Japanese knotweedReynoutria japonica
pink knotweedPersicaria capitata
Asian jumpseedPersicaria filiformis
skunk vinePaederia foetida
arrow-leaved tearthumbPersicaria sagittata
Common BuckwheatFagopyrum esculentum
Chameleon PlantHouttuynia cordata
red bistortBistorta amplexicaulis
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| China | 5,570 |
|---|---|
| Taiwan | 5,057 |
| Taiwan Province | 4,908 |
| New Taipei | 707 |
| Chiayi County | 683 |
| Taipei | 492 |
| Nantou County | 480 |
| Yilan County | 464 |
| Taichung | 395 |
| Hong Kong Special Administrative Region | 392 |
Counts show where people looked, not only where it lives.
Traits
Group and habits
- Human edibleListed as edible by a harvested source. This is a research trait, not foraging advice.Kew World Checklist of Useful Plant Species
- Medicinal useListed as having medicinal use by a harvested source. This is not medical advice.Kew World Checklist of Useful Plant Species
- Material useListed as being used for materials such as wood, fiber, resin, gum, or oil.Kew World Checklist of Useful Plant Species
- Cultural useListed as having cultural uses such as ritual, religious, psychoactive, contraceptive, abortifacient, smoking, or masticatory uses.Kew World Checklist of Useful Plant Species
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
| 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.
- Traits: Kew World Checklist of Useful Plant Species (CC BY 4.0)
- How much to rely on each source
Remember the name next time.
Practise China knotweed with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.