Amaryllidaceae
Threebract onion
Allium tribracteatum
- Family
- Amaryllidaceae
- Genus
- Allium
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Common names
By language (1)
- English
- Threebract onion
Synonyms
- Allium idahoense Traub
- Allium tolmiei Baker ex J.M.Coult.
Flowers
- In flower
- April to May (from 151 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Photos
Photo: Jason Hollinger, CC BY 2.0, from Wikimedia Commons 
Photo: Jason Hollinger, CC BY 2.0, from Wikimedia Commons
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Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.