Blackboard Tree vs Onion Downy Mildew

Alstonia scholaris compared with Peronospora destructor

Key Differences

Blackboard Tree is Least Concern while Onion Downy Mildew is Not Evaluated.

Taxonomic Classification

Rank	Blackboard Tree	Onion Downy Mildew
Kingdom	Plantae (Plants)	Chromista (Chromista)
Phylum	Magnoliophyta (Flowering Plants)	Oomycota (Oomycetes)
Class	Magnoliopsida (Dicots)	Peronosporea (Peronosporea)
Order	Gentianales (Gentianales)	Peronosporales (Peronosporales)
Family	Apocynaceae	Peronosporaceae
Genus	Alstonia	Peronospora
Species	Alstonia scholaris	Peronospora destructor

Conservation Status

Blackboard Tree

LC — Least Concern

Onion Downy Mildew

NE — Not Evaluated

Physical Characteristics

Attribute	Blackboard Tree	Onion Downy Mildew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackboard Tree

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Micronesia, Taiwan, and United States.

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).

Blackboard Tree

The Blackboard Tree (Alstonia scholaris) is a species in the genus Alstonia. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.