Cardinal Click Beetle vs Rootless Duckweed

Ampedus cardinalis compared with Wolffia arrhiza

Key Differences

Cardinal Click Beetle is Critically Endangered while Rootless Duckweed is Endangered.

Taxonomic Classification

Rank	Cardinal Click Beetle	Rootless Duckweed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Liliopsida (Monocots)
Order	Coleoptera (Beetles)	Alismatales (Alismatales)
Family	Elateridae	Araceae
Genus	Ampedus	Wolffia
Species	Ampedus cardinalis	Wolffia arrhiza

Conservation Status

Cardinal Click Beetle

CR — Critically Endangered

Rootless Duckweed

EN — Endangered

Physical Characteristics

Attribute	Cardinal Click Beetle	Rootless Duckweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cardinal Click Beetle

Habitat

Inhabits temperate coniferous forests within the Palearctic biogeographic realm.

Range

Distributed across Denmark, Norway, Sweden, and Switzerland. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Rootless Duckweed

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 4 distinct biome types spanning the Indomalayan and Oceanian and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan), Europe (10 countries), North America (Canada), and South America (Brazil). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Cardinal Click Beetle

The Cardinal Click Beetle (Ampedus cardinalis) is a species in the genus Ampedus. It is currently classified as Critically Endangered (CR) on the IUCN Red List. Inhabits temperate coniferous forests within the Palearctic biogeographic realm.