Lesser Noctule vs Siamweed

Nyctalus leisleri compared with Chromolaena odorata

Key Differences

• Lesser Noctule is Endangered while Siamweed is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Siamweed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Chiroptera (Bats)	Asterales (Daisies & Sunflowers)
Family	Vespertilionidae	Asteraceae (Daisy Family)
Genus	Nyctalus	Chromolaena
Species	Nyctalus leisleri	Chromolaena odorata

Conservation Status

Lesser Noctule

EN — Endangered

Siamweed

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Siamweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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).

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇸🇪 Sweden