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Siamweed

Chromolaena odorata

Least Concern

Habitat & Distribution

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 5 distinct biome types spanning the Afrotropic and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Widely distributed across Africa (27 countries), Asia (17 countries), Europe (6 countries), North America (5 countries), Oceania and the Pacific (5 countries), and South America (Brazil, Colombia, Guyana).

🇦🇴 Angola 🇦🇺 Australia 🇧🇩 Bangladesh 🇧🇪 Belgium 🇧🇯 Benin 🇧🇹 Bhutan 🇧🇷 Brazil 🇧🇳 Brunei 🇰🇭 Cambodia 🇨🇲 Cameroon 🇨🇫 Central African Republic 🇹🇩 Chad 🇨🇳 China 🇨🇴 Colombia 🇰🇲 Comoros 🇨🇩 Congo (DRC) 🇨🇬 Congo (Republic) 🇨🇮 Cote d'Ivoire 🇨🇺 Cuba 🇸🇻 El Salvador 🇸🇿 Eswatini 🇫🇷 France 🇬🇲 Gambia 🇬🇭 Ghana 🇬🇹 Guatemala 🇬🇳 Guinea 🇬🇼 Guinea-Bissau 🇬🇾 Guyana 🇭🇳 Honduras 🇮🇳 India 🇮🇩 Indonesia 🇰🇪 Kenya 🇱🇦 Laos 🇱🇷 Liberia 🇲🇬 Madagascar 🇲🇾 Malaysia 🇲🇭 Marshall Islands 🇲🇺 Mauritius 🇫🇲 Micronesia 🇲🇿 Mozambique 🇲🇲 Myanmar 🇳🇵 Nepal 🇳🇱 Netherlands 🇳🇪 Niger 🇳🇬 Nigeria 🇳🇴 Norway 🇵🇼 Palau 🇵🇬 Papua New Guinea 🇵🇭 Philippines 🇸🇱 Sierra Leone 🇸🇬 Singapore 🇿🇦 South Africa 🇸🇪 Sweden 🇹🇼 Taiwan 🇹🇿 Tanzania 🇹🇭 Thailand 🇹🇱 Timor-Leste 🇹🇬 Togo 🇺🇬 Uganda 🇬🇧 United Kingdom 🇺🇸 United States 🇻🇳 Vietnam 🇿🇼 Zimbabwe

Conservation Status

LC Least Concern

Full Taxonomy

Kingdom

Plantae (Plants)

Phylum

Magnoliophyta (Flowering Plants)

Class

Magnoliopsida (Dicots)

Order

Asterales (Daisies & Sunflowers)

Family

Asteraceae (Daisy Family)

Genus

Chromolaena

Species

Chromolaena odorata (Siamweed)

Similar Species in Chromolaena

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Caribbean Thoroughwort

Chromolaena corymbosa

Not Evaluated

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Wavyleaf Thoroughwort

Chromolaena sinuata

Least Concern

View all species in Chromolaena →

Explore More

Compare Species

vs Caribbean Thoroughwort vs Wavyleaf Thoroughwort

Frequently Asked Questions

What is the scientific name of Siamweed?

The scientific name of Siamweed is Chromolaena odorata. It belongs to the genus Chromolaena.

What is the conservation status of Siamweed?

Siamweed (Chromolaena odorata) is classified as Least Concern by the IUCN Red List.

Where does Siamweed live?

Siamweed is found in Widely distributed across Africa (27 countries), Asia (17 countries), Europe (6 countries), North America (5 countries), Oceania and the Pacific (5 countries), and South America (Brazil, Colombia, Guyana).. Countries include Angola, Australia, Bangladesh, Belgium, Benin, Bhutan, Brazil, Brunei, Cambodia, Cameroon.

What family does Siamweed belong to?

Siamweed (Chromolaena odorata) belongs to the genus Chromolaena, which is part of the taxonomic family Asteraceae.

Is Siamweed endangered?

No, Siamweed (Chromolaena odorata) is classified as Least Concern on the IUCN Red List, meaning it is not currently at significant risk of extinction.

What kingdom does Siamweed belong to?

Siamweed (Chromolaena odorata) belongs to the kingdom Plantae (Plants).

What are the closest relatives of Siamweed?

The closest relatives of Siamweed in the genus Chromolaena include Caribbean Thoroughwort, Wavyleaf Thoroughwort.