Alder vs American Chestnut

Alnus acuminata compared with Castanea dentata

Key Differences

• Alder is Least Concern while American Chestnut is Critically Endangered.

Taxonomic Classification

Rank	Alder	American Chestnut
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Fagales (Beeches & Oaks)	Fagales (Beeches & Oaks)
Family	Betulaceae	Fagaceae (Beech Family)
Genus	Alnus	Castanea
Species	Alnus acuminata	Castanea dentata

Evolutionary Relationship

Alder and American Chestnut share a common ancestor at the Order level: Fagales. (Beeches & Oaks)

Conservation Status

Alder

LC — Least Concern

American Chestnut

CR — Critically Endangered

Physical Characteristics

Attribute	Alder	American Chestnut
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder

Habitat

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

Range

Found in Colombia.

American Chestnut

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and Mediterranean forests and woodlands, among 5 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Canada, Norway, South Africa, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Alder

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

American Chestnut

The American Chestnut (Castanea dentata) is a species in the genus Castanea. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and Mediterranean forests and woodlands, among 5 distinct biome types within the Afrotropic biogeographic rea.