Brook-Side Alder vs Welsh onion

Alnus serrulata compared with Allium fistulosum

Key Differences

• Brook-Side Alder is Least Concern while Welsh onion is Critically Endangered.

Taxonomic Classification

Rank	Brook-Side Alder	Welsh onion
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class	Magnoliopsida (Dicots)	Liliopsida (Monocots)
Order	Fagales (Beeches & Oaks)	Asparagales (Asparagales)
Family	Betulaceae	Amaryllidaceae
Genus	Alnus	Allium
Species	Alnus serrulata	Allium fistulosum

Evolutionary Relationship

Brook-Side Alder and Welsh onion share a common ancestor at the Phylum level: Magnoliophyta. (Flowering Plants)

Conservation Status

Brook-Side Alder

LC — Least Concern

Welsh onion

CR — Critically Endangered

Physical Characteristics

Attribute	Brook-Side Alder	Welsh onion
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook-Side Alder

Habitat

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

Range

Distributed across Canada and United States.

Welsh onion

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, deserts and xeric shrublands, and tropical and subtropical dry broadleaf forests, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Algeria, Seychelles), Asia (Taiwan, Yemen), Europe (18 countries), North America (Canada, United States), Oceania and the Pacific (Tuvalu), and South America (Brazil, Colombia, Peru). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brook-Side Alder

The Brook-Side Alder (Alnus serrulata) 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.

Shared Countries

Both species can be found in 2 countries:

🇨🇦 Canada 🇺🇸 United States