Amaryllidaceae

Twincrest onion

Allium bisceptrum S.Watson

Family: Amaryllidaceae
Genus: Allium

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Twincrest onion (Allium bisceptrum) — FlowerPhoto: Jared Tholen, CC BY 4.0, from iNaturalist

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Common names

By language (2)

English: Twincrest onion
Tamil: ஆலியம் பைசெப்டம்

Synonyms

Allium bisceptrum var. bisceptrum
Allium bisceptrum var. palmeri (S.Watson) Cronquist
Allium bisceptrum var. utahense M.E.Jones
Allium palmeri S.Watson

Flowers

In flower: May to June (from 122 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Forb/herb
Lifespan: Perennial
In the US and Canada: Lower 48 states: native

Photos

FlowerPhoto: Jared Tholen, CC BY 4.0, from iNaturalist
FlowerPhoto: Darrin Gobble, CC BY 4.0, from iNaturalist
FlowerPhoto: Daughter Dad, CC BY 4.0, from iNaturalist
FlowerPhoto: Rolf Lawrenz, CC BY 4.0, from iNaturalist
Photo: Dcrjsr, CC BY 4.0, from Wikimedia Commons
Photo: christine Lesca Maillard, CC BY-SA 4.0, from Pl@ntNet via GBIF
Photo: Elliot Kulakow, CC BY 4.0, from iNaturalist
Photo: Dcrjsr, CC BY 4.0, from Wikimedia Commons
Photo: Tim Messick, CC BY 4.0, from iNaturalist
Photo: Matt Berger, CC BY 4.0, from iNaturalist
Photo: P Holroyd, CC BY 4.0, from iNaturalist
Photo: Rachel Stringham, CC BY 4.0, from iNaturalist

More in Allium

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.