Amaryllidaceae
Twinleaf onion
Allium anceps
- Family
- Amaryllidaceae
- Genus
- Allium
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Common names
By language (1)
- English
- Twinleaf onion
Flowers
- In flower
- April to June (from 28 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Photos
FlowerPhoto: Matt Berger, CC BY 4.0, from iNaturalist 
FlowerPhoto: Mark Pollock, CC BY 4.0, from iNaturalist 
FlowerPhoto: Mark Pollock, CC BY 4.0, from iNaturalist 
FlowerPhoto: Kate Manning, CC0, from iNaturalist 
Photo: Alan Rockefeller, CC BY 4.0, from iNaturalist 
Photo: Jim Morefield, CC BY 4.0, from iNaturalist 
Photo: Jim Morefield, CC BY 4.0, from iNaturalist 
Photo: Quinn Shemet, CC BY 4.0, from iNaturalist 
Photo: Matt Berger, CC BY 4.0, from iNaturalist 
Photo: Steve Matson, CC BY 4.0, from iNaturalist 
Photo: Trevor Van Loon, CC BY 4.0, from iNaturalist
More in Allium
- ChivesAllium schoenoprasumAmaryllidaceae
- OnionAllium cepaAmaryllidaceae
- GarlicAllium sativumAmaryllidaceae
- RamsonsAllium ursinumAmaryllidaceae
- ShallotAllium ascalonicumAmaryllidaceae
- Welsh onionAllium fistulosumAmaryllidaceae
- Broadleaf wild leekAllium ampeloprasumAmaryllidaceae
- Chinese chivesAllium tuberosumAmaryllidaceae
- Wild garlicAllium vinealeAmaryllidaceae
- Sand leekAllium scorodoprasumAmaryllidaceae
- RakkyoAllium chinenseAmaryllidaceae
- Field garlicAllium oleraceumAmaryllidaceae
Sources: classification 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.