Allium cernuum

Characteristics
Monocots
Alliaceae
Allium
Allium cernuum Roth
Nodding Onion
forb
10
**
Native AGCP (FACU), EMP (FACU) (NWPL) TN[SNR] KY[SNR] (State Rank) G5 (Global Rank)
Armaments
No
Base Flower Color
Pink; Purple; White
Duration
Perennial
Fruit Dehiscence
Yes
Fruit Type
Capsule
Fruit Wet/Dry
Dry
General Ecology
Terrestrial
Growth Habit
forb
Inflorescence Position
terminal
Leaf Arrangement
basal; alternate
Leaf Complexity
simple
Leaf Dissection
0
Leaf Duration
deciduous
Leaf Fragrance
Yes; onion
Leaf Petiole Type
sessile
Leaf Type
linear; grass-like
Leaf Venation
parallel
Leaflet Margins
entire
Leaflet Number
0
Moisture Requirements
Xeric; Mesic; Hydroxeric
Natural Area Presence
FCFSP; GILES; WOLF; CCNMP; SM
Overall Flower Symmetry
Actinomorphic
Parent Rock
Calcareous; Limestone; Shale
Perianth Present
Yes
Petal Number
6
Soil Composition
Mineral
Soil pH
Acidic; Alkaline
Unconsolidated Rock
Yes
Unconsolidated Size Class
Cobble; Gravel
Woody Herbaceous
Herbaceous
View details of Herbarium specimens
** Not applicable or data not available.
Classification
ASPARAGALES
Allium
Allium cernuum Roth - Nodding Onion
Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display its name.

Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

Ecoregions
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim
  • Interior River Valleys and Hills
    • Shawnee / Caseyville Hills
  • Mississippi Alluvial Plain
  • Mississippi Valley Loess Plains
Synonyms
Specimens and Distribution

Click on an Accession Number to view additional details about the specimen.

Range of years during which specimens were collected:

Plant Photos
Allium cernuum - 3
Allium cernuum - Ashley B. Morris View Full Size
Allium cernuum - 13
Allium cernuum - Dwayne Estes View Full Size
Allium cernuum - 13
Allium cernuum - Dwayne Estes View Full Size
Allium cernuum - 20
Allium cernuum - Milo Pyne View Full Size
Allium cernuum - 20
Allium cernuum - Milo Pyne View Full Size
Allium cernuum - 18
Allium cernuum - Sunny Fleming View Full Size
Allium cernuum - 18
Allium cernuum - Sunny Fleming View Full Size
Allium cernuum - 21
Allium cernuum - Tara Littlefield View Full Size
Allium cernuum - 21
Allium cernuum - Tara Littlefield View Full Size
Allium cernuum - 21
Allium cernuum - Tara Littlefield View Full Size