Nodding Onion
Allium cernuum
Linked agroforestry plant dataPlant photos
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Flowers of Allium cernuum.
Fritzflohrreynolds / Wikimedia Commons / CC BY-SA 3.0
Photo details
Resized and converted to WebP. No content edits.
Source: File:Allium cernuum - Nodding Onion 2.jpg
Reviewed . Source identification, photograph and license reviewed. The image illustrates the named plant; it does not verify dimensions or other plant traits.
Flowers of Allium cernuum.
Walter Siegmund (talk) / Wikimedia Commons / CC BY-SA 3.0
Photo details
Resized and converted to WebP. No content edits.
Source: File:Allium cernuum 2848.JPG
Reviewed . Source identification, photograph and license reviewed. The image illustrates the named plant; it does not verify dimensions or other plant traits.
Common names
26 names · 19 languagesOther languages (18)
- Dutch
-
- Amerikaanse look
- Look
- Chinese (Traditional)
-
- 垂頭蒜[3]
- Czech
-
- česnek převislý[3]
- Danish
-
- alleghenyprydløg[3]
- Downriver Halkomelem
-
- q̓ʷəχʷíʔəc[3]
- Estonian
-
- kaldlauk[3]
- Finnish
-
- nuokkulaukka[3]
- Island Halkomelem
-
- qw'uxwi'uc[3]
- Ojibwe
-
- Zhigaagawanzh (Cîgaga'wûnj)[3]
- Russian
-
- Лук склонённый[3]
- Saanich
-
- SḴEX̱[3]
- Secwepemc
-
- qwléwe[3]
- Slovak
-
- cesnak sklonený[3]
- Swedish
-
- prärielök[3]
- Upriver Halkomelem
-
- st'exut[3]
Sources & name notes (3)
Names recorded in our plant catalogue and botanical sources, grouped by language. Usage can vary by region.
Numbered references identify names recorded by an external source. Other names are from our plant catalogue.
NC State Extension Gardener Plant Toolbox; English common names in a United States horticultural reference.
Source records
- Nodding Onion — ul#common_names > li:nth-of-type(3); heading: Common Name(s):; Allium cernuum.
- Allegheny Onion — ul#common_names > li:nth-of-type(1); heading: Common Name(s):; Allium cernuum.
- Lady's Leek — ul#common_names > li:nth-of-type(2); heading: Common Name(s):; Allium cernuum.
- Nodding Wild Onion — ul#common_names > li:nth-of-type(4); heading: Common Name(s):; Allium cernuum.
- Wild Onion — ul#common_names > li:nth-of-type(5); heading: Common Name(s):; Allium cernuum.
Community-curated iNaturalist taxonomy. This is a common-name attestation, not an independent botanical determination.
Source records
- nodding onion — results[0].names[1]; taxon id 116364; Allium cernuum.
- Ail penché — results[0].names[4]; taxon id 116364; Allium cernuum.
- wild onion — results[0].names[3]; taxon id 116364; Allium cernuum.
- ajo-cebolla — results[0].names[2]; taxon id 116364; Allium cernuum.
Community-curated iNaturalist taxonomy; common-name attestation, not an independent botanical determination.
Source records
- nodding onion — results[0].names[1]; taxon id 116364; Allium cernuum.
- Ail penché — results[0].names[4]; taxon id 116364; Allium cernuum.
- wild onion — results[0].names[3]; taxon id 116364; Allium cernuum.
- ajo-cebolla — results[0].names[2]; taxon id 116364; Allium cernuum.
- kaldlauk — results[0].names[5]; taxon id 116364; Allium cernuum.
- česnek převislý — results[0].names[6]; taxon id 116364; Allium cernuum.
- Zhigaagawanzh (Cîgaga'wûnj) — results[0].names[7]; taxon id 116364; Allium cernuum.
- prärielök — results[0].names[8]; taxon id 116364; Allium cernuum.
- alleghenyprydløg — results[0].names[9]; taxon id 116364; Allium cernuum.
- Лук склонённый — results[0].names[10]; taxon id 116364; Allium cernuum.
- 垂头蒜 — results[0].names[11]; taxon id 116364; Allium cernuum.
- 垂頭蒜 — results[0].names[12]; taxon id 116364; Allium cernuum.
- nuokkulaukka — results[0].names[13]; taxon id 116364; Allium cernuum.
- 垂花韭 — results[0].names[14]; taxon id 116364; Allium cernuum.
- cesnak sklonený — results[0].names[15]; taxon id 116364; Allium cernuum.
- q̓ʷəχʷíʔəc — results[0].names[16]; taxon id 116364; Allium cernuum.
- st'exut — results[0].names[17]; taxon id 116364; Allium cernuum.
- qw'uxwi'uc — results[0].names[18]; taxon id 116364; Allium cernuum.
- SḴEX̱ — results[0].names[19]; taxon id 116364; Allium cernuum.
- qwléwe — results[0].names[20]; taxon id 116364; Allium cernuum.
Source-backed information
Published observations for this plant. Each reference supports the information beside it.
- Botanical family
-
Amaryllidaceae
Genus-level classification for Allium; this does not confirm the complete catalogue name.
Sources [1] - Taxonomy
-
NC State Extension publishes a profile under Allium cernuum.
Profile-name match; no accepted-name status is asserted.
Sources [2] - Mature height
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0.15–0.61 m
NC State Extension profile. Converted from the source range in feet and inches; mature size varies with growing conditions.
Sources [2] - Mature spread
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0.1–0.3 m
NC State Extension profile. Converted from the source range in feet and inches; mature size varies with growing conditions.
Sources [2] - Plant habit
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Arching; Erect
NC State Extension profile.
Sources [2] - Life cycle
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Perennial
NC State Extension profile.
Sources [2] - Growth rate
-
Medium
NC State Extension profile.
Sources [2] - Light
-
Full sun (6 or more hours of direct sunlight a day); Partial Shade (Direct sunlight only part of the day, 2-6 hours)
NC State Extension profile.
Sources [2] - Moisture and drainage
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Good Drainage; Moist; Occasionally Dry
NC State Extension profile.
Sources [2] - Soil texture
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High Organic Matter
NC State Extension profile.
Sources [2] - Soil pH
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Alkaline (>8.0); Neutral (6.0-8.0)
NC State Extension profile. These source categories do not certify the catalogue’s numeric pH interval.
Sources [2] - Flowering season
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Summer
NC State Extension profile. Seasons reflect the source region and do not verify the catalogue’s exact flowering months.
Sources [2] - Reported wildlife attraction
-
Listed as attracting: bees, butterflies, hummingbirds, pollinators.
NC State Extension profile. Broad wildlife categories; this does not establish flower visits by a named bee species or quantify nectar and pollen.
Sources [2] - Native range
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W. & S. Canada to NE. Mexico.
Explicit native locality records in Kew WCVP v16; introduced and doubtful distributions excluded. Continent conversion follows the documented geographic mapping.
Sources [3]
Who this plant supports
Solitary wild bees
Complete plant information
Structure
- Vegetation layer
- Herbaceous, Vegetable
- Size
- Small
- Dimensions
- 0.50 m high × 0.30 m wide
- Lifecycle
- Perennial
Site conditions
- USDA hardiness
- 5-9
- Moisture
- Moist
- Soil
- Sandy, Loamy, Clay
- pH
- Acid, Neutral, Alkaline
- Light
- Sun
Uses
- Edible parts
- Leaves, Root, Flowers
- Edibility
- 5 out of 5
- Medicinal value
- 2 out of 5
Spring onion - edible in both raw and cooked forms. This strongly scented bulb is mainly used as a flavoring. The bulb is about 50 mm long and 15 mm wide. Onion leaves - suitable for eating raw or cooked. With a delicious, strong onion-like flavor, they are an excellent addition to salads. These leaves are available from spring to autumn and are among the favorite ingredients of the local cuisine in Cornwall. Flowers - can be consumed in both raw and cooked forms. They have a delightful strong onion-like flavor, slightly more intense than the leaves, especially when the seeds begin to form. The flowers are both decorative and tasty, making a beautiful addition to salads.
Sources and references
References for the information marked with source numbers on this page.
-
Catalogue of Life
Allium — Catalogue of Life COL26.8
COL26.8 (2026-08-20). Contributing checklist: The World Checklist of Vascular Plants (WCVP). This is taxonomic evidence, not an independent ecological study.
Supports: Botanical familyRelevant sections
- Botanical family: NameUsage.tsv line 3537954; ID 8VTKZ; rank genus; status accepted
Source checked on .
Source data licence: CC BY 4.0.
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NC State Extension
Allium cernuum — Plant Toolbox
NC State Extension Gardener Plant Toolbox. Growing conditions and seasons reflect its United States horticultural context.
Supports: TaxonomyMature heightMature spreadPlant habitLife cycleGrowth rateLightMoisture and drainageSoil textureSoil pHFlowering seasonReported wildlife attractionRelevant sections
- Taxonomy: Main botanical heading (h1)
- Mature height: Dimensions / Height
- Mature spread: Dimensions / Width
- Plant habit: Habit/Form
- Life cycle: Life Cycle
- Growth rate: Growth Rate
- Light: Light
- Moisture and drainage: Soil Drainage
- Soil texture: Soil Texture
- Soil pH: Soil pH
- Flowering season: Flower Bloom Time
- Reported wildlife attraction: Attracts
Source checked on .
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Royal Botanic Gardens, Kew
Allium cernuum — Kew WCVP native distribution
Native distribution and taxonomic treatment from the official WCVP v16 export (4 June 2026). The link opens the corresponding POWO taxon. Source rows are retained in the native-range audit archive.
Supports: Native rangeRelevant sections
- Native range: WCVP v16; wcvp_names.csv lines 254033; wcvp_distribution.csv native locality lines 413604, 413605, 413606, 413607, 413608, 413609, 413610, 413611, 413612, 413613, 413614, 413615, 413616, 413617, 413618, 413619, 413620, 413621, 413622, 413623, 413624, 413625, 413626, 413627, 413628, 413629, 413630, 413631, 413632, 413633, 413634, 413635, 413636, 413637, 413638, 413639, 413640, 413641
Source checked on .
Source data licence: CC BY 3.0.