Black Laceweaver vs Flat-Leaved Bladderwort

Amaurobius ferox compared with Utricularia intermedia

Key Differences

• Black Laceweaver is Least Concern while Flat-Leaved Bladderwort is Critically Endangered.

Taxonomic Classification

Rank	Black Laceweaver	Flat-Leaved Bladderwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Arachnida (Arachnids)	Magnoliopsida (Dicots)
Order	Araneae (Araneae)	Lamiales (Lamiales)
Family	Amaurobiidae	Lentibulariaceae
Genus	Amaurobius	Utricularia
Species	Amaurobius ferox	Utricularia intermedia

Conservation Status

Black Laceweaver

LC — Least Concern

Flat-Leaved Bladderwort

CR — Critically Endangered

Physical Characteristics

Attribute	Black Laceweaver	Flat-Leaved Bladderwort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Laceweaver

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Distributed across Belgium, Canada, Denmark, Sweden, and United States.

Flat-Leaved Bladderwort

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (5 countries) and North America (Canada, United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Black Laceweaver

The Black Laceweaver (Amaurobius ferox) is a species in the genus Amaurobius. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial habitats from forests to deserts.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇩🇰 Denmark 🇸🇪 Sweden 🇺🇸 United States