Plants › Sunflowers, Daisies, Asters, and Allies
Siam weed
Chromolaena odorata
36 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
blue mistflowerConoclinium coelestinum
Tamaulipan Spring MistflowerTamaulipa azurea
pussyfootPraxelis clematidea
white snakerootAgeratina altissima
billygoat weedAgeratum conyzoides
Pink thoroughwortFleischmannia incarnata
mile-a-minuteMikania micrantha
climbing hempvineMikania scandens
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 3,607 |
|---|---|
| China | 2,230 |
| Taiwan | 2,160 |
| Taiwan Province | 2,130 |
| India | 1,732 |
| Texas | 1,558 |
| South Africa | 1,397 |
| KwaZulu-Natal | 1,230 |
| Mexico | 871 |
| Kerala | 710 |
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
- Toxic to humansListed as toxic or not suitable as food for humans by a harvested source.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
- Restoration or landscaping useListed as being used for restoration, landscaping, ornamental planting, erosion control, soil improvement, shade, windbreaks, pollution indicators, or wastewater purification.Kew World Checklist of Useful Plant Species
- Subshrub growth formListed by a harvested source as having a subshrub growth form.USDA PLANTS Characteristics
- Perennial plantListed by a harvested source as having a perennial life duration.USDA PLANTS Characteristics
- Pollinator-associated plantDescends from a plant lineage commonly associated with pollinators.Inferred from its group
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 | Sunflowers, Bellflowers, Fanflowers, and Allies · Asterales |
| Family | Sunflowers, Daisies, Asters, and Allies · Asteraceae |
| Genus | Chromolaena |
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)
- Traits: USDA PLANTS Characteristics (U.S. Government work / public domain)
- How much to rely on each source
Remember the name next time.
Practise Siam weed with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.