Bear-Grape vs Rootless Duckweed

Arctostaphylos uva-ursi compared with Wolffia arrhiza

Key Differences

• Bear-Grape is Least Concern while Rootless Duckweed is Endangered.

Taxonomic Classification

Rank	Bear-Grape	Rootless Duckweed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class	Magnoliopsida (Dicots)	Liliopsida (Monocots)
Order	Ericales (Ericales)	Alismatales (Alismatales)
Family	Ericaceae	Araceae
Genus	Arctostaphylos	Wolffia
Species	Arctostaphylos uva-ursi	Wolffia arrhiza

Evolutionary Relationship

Bear-Grape and Rootless Duckweed share a common ancestor at the Phylum level: Magnoliophyta. (Flowering Plants)

Conservation Status

Bear-Grape

LC — Least Concern

Rootless Duckweed

EN — Endangered

Physical Characteristics

Attribute	Bear-Grape	Rootless Duckweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bear-Grape

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (6 countries) and North America (Canada, United States).

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.

Bear-Grape

The Bear-Grape (Arctostaphylos uva-ursi) is a species in the genus Arctostaphylos. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Shared Countries

Both species can be found in 3 countries:

🇨🇦 Canada 🇳🇴 Norway 🇸🇪 Sweden