Beardgrass vs Rootless Duckweed

Andropogon chevalieri compared with Wolffia arrhiza

Key Differences

• Beardgrass is Least Concern while Rootless Duckweed is Endangered.

Taxonomic Classification

Rank	Beardgrass	Rootless Duckweed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Liliopsida (Monocots)	Liliopsida (Monocots)
Order	Poales (Grasses)	Alismatales (Alismatales)
Family	Poaceae (Grass Family)	Araceae
Genus	Andropogon	Wolffia
Species	Andropogon chevalieri	Wolffia arrhiza

Evolutionary Relationship

Beardgrass and Rootless Duckweed share a common ancestor at the Class level: Liliopsida. (Monocots)

Conservation Status

Beardgrass

LC — Least Concern

Rootless Duckweed

EN — Endangered

Physical Characteristics

Attribute	Beardgrass	Rootless Duckweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beardgrass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Found in Guinea.

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.

Beardgrass

The Beardgrass (Andropogon chevalieri) is a species in the genus Andropogon. It is currently classified as Least Concern on the IUCN Red List. Typically found in grasslands, wetlands, forests, and cultivated landscapes.