Garlic of the Tremiti Islands vs Welsh onion

Allium diomedeum compared with Allium fistulosum

Key Differences

• Garlic of the Tremiti Islands is Endangered while Welsh onion is Critically Endangered.

Taxonomic Classification

Rank	Garlic of the Tremiti Islands	Welsh onion
Kingdom same	Plantae (bitki)	Plantae (bitki)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Liliopsida (Monocots)	Liliopsida (Monocots)
Order same	Asparagales (Asparagales)	Asparagales (Asparagales)
Family same	Amaryllidaceae	Amaryllidaceae
Genus same	Allium	Allium
Species	Allium diomedeum	Allium fistulosum

Evolutionary Relationship

Garlic of the Tremiti Islands and Welsh onion share a common ancestor at the Genus level: Allium.

Conservation Status

Garlic of the Tremiti Islands

EN — Endangered

Welsh onion

CR — Critically Endangered

Physical Characteristics

Attribute	Garlic of the Tremiti Islands	Welsh onion
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Garlic of the Tremiti Islands

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

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.