Brook Floater vs Onion Downy Mildew

Alasmidonta varicosa compared with Peronospora destructor

Key Differences

• Brook Floater is Vulnerable while Onion Downy Mildew is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Onion Downy Mildew
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Mollusca (Mollusks)	Oomycota (Oomycetes)
Class	Bivalvia (Bivalvia)	Peronosporea (Peronosporea)
Order	Unionida (Unionida)	Peronosporales (Peronosporales)
Family	Unionidae	Peronosporaceae
Genus	Alasmidonta	Peronospora
Species	Alasmidonta varicosa	Peronospora destructor

Conservation Status

Brook Floater

VU — Vulnerable

Onion Downy Mildew

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Onion Downy Mildew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Onion Downy Mildew

Habitat

Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Brazil).

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States