Azalea Gall vs Brook Alder

Exobasidium japonicum compared with Alnus maritima

Key Differences

Azalea Gall is Least Concern while Brook Alder is Endangered.

Taxonomic Classification

Rank	Azalea Gall	Brook Alder
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Magnoliophyta (Flowering Plants)
Class	Exobasidiomycetes (Exobasidiomycetes)	Magnoliopsida (Dicots)
Order	Exobasidiales (Exobasidiales)	Fagales (Beeches & Oaks)
Family	Exobasidiaceae	Betulaceae
Genus	Exobasidium	Alnus
Species	Exobasidium japonicum	Alnus maritima

Conservation Status

Azalea Gall

LC — Least Concern

Brook Alder

EN — Endangered

Physical Characteristics

Attribute	Azalea Gall	Brook Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Azalea Gall

Habitat

Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Found across Asia (Taiwan) and Europe (6 countries).

Brook Alder

Habitat

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

Range

Distributed across Belgium, France, Netherlands, and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Azalea Gall

The Azalea Gall (Exobasidium japonicum) is a species in the genus Exobasidium. It is currently classified as Least Concern on the IUCN Red List. Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Brook Alder

The Brook Alder (Alnus maritima) is a species in the genus Alnus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.