Amaryllidaceae

Broadstemmed onion

Allium platycaule S.Watson

Family: Amaryllidaceae
Genus: Allium

Pet and kid safety: not checked yet. Check pet-safe plants

Broadstemmed onion: Allium platycaule—flat stem onion. Grows between 1900 and 3000 meters in southeastern Oregon, northwestern Nevada, and in the Warner, Cascade, and Sierra Nevada — Photo: John Rusk from Berkeley, CA, United States of America, CC BY 2.0, from Wikimedia Commons

Is yours looking unwell? Scan your plant — free

Common names

By language (1)

English: Broadstemmed onion

Characteristics

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

Photos

Photo: John Rusk from Berkeley, CA, United States of America, CC BY 2.0, from Wikimedia Commons

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.