Blistering Ammania vs Rootless Duckweed

Ammannia baccifera compared with Wolffia arrhiza

Key Differences

• Blistering Ammania is Least Concern while Rootless Duckweed is Endangered.

Taxonomic Classification

Rank	Blistering Ammania	Rootless Duckweed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class	Magnoliopsida (Dicots)	Liliopsida (Monocots)
Order	Myrtales (Myrtales)	Alismatales (Alismatales)
Family	Lythraceae	Araceae
Genus	Ammannia	Wolffia
Species	Ammannia baccifera	Wolffia arrhiza

Evolutionary Relationship

Blistering Ammania and Rootless Duckweed share a common ancestor at the Phylum level: Magnoliophyta. (Flowering Plants)

Conservation Status

Blistering Ammania

LC — Least Concern

Rootless Duckweed

EN — Endangered

Physical Characteristics

Attribute	Blistering Ammania	Rootless Duckweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blistering Ammania

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and mangrove forests and coastal wetlands, 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 (5 countries), Europe (Greece, Italy, North Macedonia), and Oceania and the Pacific (Palau).

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.

Blistering Ammania

The Blistering Ammania (Ammannia baccifera) is a species in the genus Ammannia. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and mangrove forests and coastal wetlands, among 4 distinct biome types spanning the Indomalayan and Oceanian

Shared Countries

Both species can be found in 2 countries:

🇮🇹 Italy 🇯🇵 Japan