Siamweed vs small tortoiseshell

Chromolaena odorata compared with Aglais urticae

Key Differences

• Siamweed is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Siamweed	small tortoiseshell
Kingdom	Plantae (पादप)	Animalia (प्राणी)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (सन्धिपाद)
Class	Magnoliopsida (मैग्नोलियोप्सीडा)	Insecta (कीट)
Order	Asterales (Daisies & Sunflowers)	Lepidoptera (शल्कपंखी गण)
Family	Asteraceae (Daisy Family)	Nymphalidae (Brush-footed Butterflies)
Genus	Chromolaena	Aglais
Species	Chromolaena odorata	Aglais urticae

Conservation Status

Siamweed

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Siamweed	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Siamweed

Habitat

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.

Range

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).

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇸🇪 Sweden 🇬🇧 United Kingdom