Snowdrop onion vs Welsh onion

Allium galanthum compared with Allium fistulosum

Key Differences

• Snowdrop onion is Data Deficient while Welsh onion is Critically Endangered.

Taxonomic Classification

Rank	Snowdrop onion	Welsh onion
Kingdom same	Plantae (植物)	Plantae (植物)
Phylum same	Magnoliophyta (被子植物門)	Magnoliophyta (被子植物門)
Class same	Liliopsida (単子葉植物綱)	Liliopsida (単子葉植物綱)
Order same	Asparagales (クサスギカズラ目)	Asparagales (クサスギカズラ目)
Family same	Amaryllidaceae	Amaryllidaceae
Genus same	Allium	Allium
Species	Allium galanthum	Allium fistulosum

Evolutionary Relationship

Snowdrop onion and Welsh onion share a common ancestor at the Genus level: Allium.

Conservation Status

Snowdrop onion

DD — Data Deficient

Welsh onion

CR — Critically Endangered

Physical Characteristics

Attribute	Snowdrop onion	Welsh onion
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Snowdrop onion

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.