Allium cernuum

ClassificationMonocots
FamilyAlliaceae
Family (Traditional)Alliaceae
GenusAllium
Species:Allium cernuum Roth
Common NameNodding Onion
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: CCNMP; Natural Area Presence: GILES; Natural Area Presence: SM; Natural Area Presence: WOLF; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Xeric; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-mesic; Moisture Requirements: Mesic; Region of Origin: North America; Reproductive Phenology: June; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Leaf Arrangement: alternate; Leaf Arrangement: basal; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: Yes; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Type: grass-like; Leaf Type: linear; Leaf Venation: parallel; Leaflet Margins: entire; Leaflet Number: 0; Base Flower Color: Pink; Base Flower Color: Purple; Base Flower Color: White; Fruit Dehiscence: Yes; Fruit Type: Capsule; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: terminal; Overall Flower Symmetry: Actinomorphic; Perianth Present: Yes; Petal Number: 6; Sporangium Arrangement: N/A
C value 10
StatusNative; AGCP (FACU), EMP (FACU) (NWPL); TN[SNR] KY[SNR] (State Rank); G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Species Distribution Map

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

  • State Boundaries
  • Counties
  • Counties - Species Present
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

Synonyms

SynonymFull Citation
Allium cernuum subsp. obtusum Allium cernuum subsp. obtusum
Allium cernuum var. cernuum Allium cernuum var. cernuum
Allium cernuum var. neomexicanum Allium cernuum var. neomexicanum (Rydb.) J.F. Macbr.
Allium cernuum var. obtusum Allium cernuum var. obtusum Cockerell ex J.F. Macbr.
Allium natans Allium natans Rydb.
Allium neomexicanum Allium neomexicanum Rydb.
Allium recurvatum Allium recurvatum Rydb.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Anderson (KY), Bath (KY), Breckinridge (KY), Carter (KY), Casey (KY), Clinton (KY), Crittenden (KY), Cumberland (KY), Estill (KY), Fleming (KY), Franklin (KY), Garrard (KY), Hardin (KY), Jefferson (KY), Lincoln (KY), Logan (KY), McCreary (KY), Madison (KY), Meade (KY), Morgan (KY), Oldham (KY), Pulaski (KY), Robertson (KY), Rockcastle (KY), Rowan (KY), Woodford (KY), Anderson (TN), Campbell (TN), Carter (TN), Cheatham (TN), Claiborne (TN), Clay (TN), Cumberland (TN), Davidson (TN), DeKalb (TN), Franklin (TN), Giles (TN), Hamilton (TN), Hancock (TN), Hawkins (TN), Jackson (TN), Johnson (TN), Knox (TN), Lewis (TN), Lincoln (TN), Marion (TN), Maury (TN), Meigs (TN), Morgan (TN), Overton (TN), Pickett (TN), Polk (TN), Putnam (TN), Roane (TN), Robertson (TN), Rutherford (TN), Smith (TN), Unicoi (TN), Union (TN), Van Buren (TN), Warren (TN), Washington (TN), White (TN), Wilson (TN)

Herbaria represented by specimen data listed below: SWMT, APSC, EKY, HTTU, BEREA, TENN, MDKY, MTSU, UOS, MEM, UCHT, ETSU

Range of years during which specimens were collected: 1939 - 2019

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100004975 Fleming Kentucky 06 Jul 1999 Kim Feeman
587
EKY
Allium cernuum
31234100004991 Franklin Kentucky 27 Jul 1956 Mary E. Wharton
10410
EKY
Allium cernuum
31234100005048 Madison Kentucky 31 Jul 1978 J. Stuart Lassetter
3144
EKY
Allium cernuum
31234100004983 Franklin Kentucky 09 Aug 1956 Mary E. Wharton
10496
EKY
Allium cernuum
31234100004819 Anderson Kentucky 18 Jul 1978 William S. Bryant
199
EKY
Allium cernuum
31234100004801 Anderson Kentucky 17 Jul 1978 William S. Bryant
198
EKY
Allium cernuum
31234100005121 Woodford Kentucky 14 Aug 1954 Mary Wharton
8651
EKY
Allium cernuum
31234100005071 Robertson Kentucky 19 Jun 2003 Timothy J. Weckman
8148
EKY
Allium cernuum
31234100005212 Wilson Tennessee 12 Aug 1979 B. Eugene Wofford
79-242
EKY
Allium cernuum
31234100005204 Wilson Tennessee 31 Aug 1990 V. E. McNeilus
90-780
EKY
Allium cernuum
31234100004959 Estill Kentucky 24 Aug 1988 Richard G. Guetig
903
EKY
Allium cernuum
31234100004835 Carter Kentucky 30 Jul 1965 Elizabeth M. Browne
11005
EKY
Allium cernuum
31234100004892 Clinton Kentucky 24 Jul 1999 Mark A. Gorton
99-529
EKY
Allium cernuum
31234100004934 Estill Kentucky 16 Jul 1978 William H. Martin
EKY
Allium cernuum
31234100004884 Clinton Kentucky 05 Jul 2000 Mark A. Gorton
00-490
EKY
Allium cernuum
31234100004967 Estill Kentucky 01 Aug 1978 Carol Williams
EKY
Allium cernuum
31234100005055 Madison Kentucky 07 Jul 1956 Mary E. Wharton
10221
EKY
Allium cernuum
31234100005196 Rutherford Tennessee 21 Aug 1980 Richard H. Hannan
5160
EKY
Allium cernuum
N/A Woodford Kentucky 14 Aug 1954 Mary E. Wharton
8651
EKY
Allium cernuum
31234100005113 Woodford Kentucky 09 Jul 1955 Mary E. Wharton
9092
EKY
Allium cernuum
31234100005089 Rockcastle Kentucky 05 Oct 1989 Neal Denton
985
EKY
Allium cernuum
31234100004868 Clinton Kentucky 05 Jul 1999 Mark A. Gorton
99-378
EKY
Allium cernuum
31234100004827 Carter Kentucky 30 Jul 1965 Elizabeth M. Browne
11005.5
EKY
Allium cernuum
31234100004918 Cumberland Kentucky 05 Oct 1997 James B. Beck
370
EKY
Allium cernuum
31234100004900 Crittenden Kentucky 12 Sep 1968 Raymond Athey
454
EKY
Allium cernuum
31234100005097 Woodford Kentucky 29 Jul 1978 J. Stuart Lassetter
3073A
EKY
Allium cernuum
31234100005014 Franklin Kentucky 01 Sep 1980 Hal Bryan
FR-199
EKY
Allium cernuum
31234100005022 Lincoln Kentucky 10 Sep 2001 Timothy J. Weckman
6796
EKY
Allium cernuum
31234100004942 Estill Kentucky 10 Jun 1981 Richard H. Hannan
6999
EKY
Allium cernuum
31234100005006 Franklin Kentucky 08 Jul 1981 Steven Rice
FR-475
EKY
Allium cernuum
31234100004843 Carter Kentucky 30 Jul 1965 Elizabeth M. Browne
11005.7
EKY
Allium cernuum
31234100005030 Logan Kentucky 05 Aug 1976 Raymond Athey
3549
EKY
Allium cernuum
31234100004850 Casey Kentucky 05 May 1988 Bruce Hoagland
63
EKY
Allium cernuum
31234100004793 Anderson Kentucky 17 Aug 1955 Mary E. Wharton
9436
EKY
Allium cernuum
31234100004876 Clinton Kentucky 05 Jul 1999 Mark A. Gorton
99-379
EKY
Allium cernuum
31234100005105 Woodford Kentucky 09 Jul 1955 Mary E. Wharton
9092
EKY
Allium cernuum
BEREA001320 Madison Kentucky 13 Aug 1997 Ralph L. Thompson, Robert F.C. Naczi
97-1509
BEREA
Allium cernuum
BEREA001308 Casey Kentucky 05 May 1988 Bruce Hoagland
63
BEREA
Allium cernuum
BEREA001323 Rockcastle Kentucky 05 Oct 1989 Neal Denton, Johnny R. Skeese
985
BEREA
Allium cernuum
BEREA001309 Crittenden Kentucky 04 Sep 1990 Landon E. McKinney
4570
BEREA
Allium cernuum
BEREA001318 Madison Kentucky 25 Jul 1982 David D. Taylor
1077
BEREA
Allium cernuum
BEREA001324 Rockcastle Kentucky 29 Jul 1997 Ralph L. Thompson, Chris A. Fleming
AF-166
BEREA
Allium cernuum
ETSU005386 Carter Tennessee 28 Jul 2012 Frosty Levy
ETSU
Allium cernuum
N/A Carter Tennessee 28 Apr 2018 Frosty Levy
ETSU
Allium cernuum
MDKY00005737 Morgan Kentucky
MDKY
Allium cernuum
MDKY00005736 Rowan Kentucky
MDKY
Allium cernuum
MDKY00005733 Carter Kentucky
MDKY
Allium cernuum
MDKY00005731 Fleming Kentucky
MDKY
Allium cernuum
MDKY00005738 Bath Kentucky
MDKY
Allium cernuum
MDKY00005732 Carter Kentucky
MDKY
Allium cernuum
MDKY00005740 Logan Kentucky
MDKY
Allium cernuum
MDKY00005734 Carter Kentucky
MDKY
Allium cernuum
MDKY00005742 Carter Kentucky
MDKY
Allium cernuum
MDKY00005743 Fleming Kentucky
MDKY
Allium cernuum
MDKY00005729 Carter Kentucky
MDKY
Allium cernuum
MDKY00005735 Carter Kentucky
MDKY
Allium cernuum
MDKY00005739 Madison Kentucky
MDKY
Allium cernuum
MDKY00005741 Carter Kentucky
MDKY
Allium cernuum
MDKY00005730 Rowan Kentucky
MDKY
Allium cernuum
MDKY00005902 Fleming Kentucky
MDKY
Allium cernuum
TENN-V-0066016 Wilson Tennessee
TENN
Allium cernuum
TENN-V-0066000 Meigs Tennessee
TENN
Allium cernuum
TENN-V-0066255 Carter Kentucky
TENN
Allium cernuum
TENN-V-0066008 Smith Tennessee
TENN
Allium cernuum
TENN-V-0066010 Unicoi Tennessee
TENN
Allium cernuum
TENN-V-0066011 Unicoi Tennessee
TENN
Allium cernuum
TENN-V-0065978 Campbell Tennessee
TENN
Allium cernuum
TENN-V-0065998 Meigs Tennessee
TENN
Allium cernuum
TENN-V-0065985 Davidson Tennessee
TENN
Allium cernuum
TENN-V-0066243 Woodford Kentucky
TENN
Allium cernuum
TENN-V-0065983 Claiborne Tennessee
TENN
Allium cernuum
TENN-V-0065992 Johnson Tennessee
TENN
Allium cernuum
TENN-V-0065993 Knox Tennessee
TENN
Allium cernuum
TENN-V-0065986 DeKalb Tennessee
TENN
Allium cernuum
TENN-V-0066256 Carter Kentucky
TENN
Allium cernuum
TENN-V-0065980 Cheatham Tennessee
TENN
Allium cernuum
TENN-V-0066003 Pickett Tennessee
TENN
Allium cernuum
TENN-V-0066009 Unicoi Tennessee
TENN
Allium cernuum
TENN-V-0065996 Maury Tennessee
TENN
Allium cernuum
TENN-V-0066012 Union Tennessee
TENN
Allium cernuum
TENN-V-0065995 Marion Tennessee
TENN
Allium cernuum
TENN-V-0065988 Franklin Tennessee
TENN
Allium cernuum
TENN-V-0066257 Carter Kentucky
TENN
Allium cernuum
TENN-V-0066013 Van Buren Tennessee
TENN
Allium cernuum
TENN-V-0065989 Hamilton Tennessee
TENN
Allium cernuum
TENN-V-0066015 Washington Tennessee
TENN
Allium cernuum
TENN-V-0065999 Meigs Tennessee
TENN
Allium cernuum
TENN-V-0065977 Anderson Tennessee
TENN
Allium cernuum
TENN-V-0065987 Franklin Tennessee
TENN
Allium cernuum
TENN-V-0066005 Roane Tennessee
TENN
Allium cernuum
TENN-V-0066004 Polk Tennessee
TENN
Allium cernuum
TENN-V-0066002 Overton Tennessee
TENN
Allium cernuum
TENN-V-0065997 Meigs Tennessee
TENN
Allium cernuum
TENN-V-0065990 Hancock Tennessee
TENN
Allium cernuum
TENN-V-0065981 Cheatham Tennessee
TENN
Allium cernuum
TENN-V-0066006 Rutherford Tennessee
TENN
Allium cernuum
TENN-V-0065979 Campbell Tennessee
TENN
Allium cernuum
TENN-V-0066258 Hardin Kentucky
TENN
Allium cernuum
TENN-V-0065994 Lincoln Tennessee
TENN
Allium cernuum
TENN-V-0066260 Madison Kentucky
TENN
Allium cernuum
TENN-V-0066261 Meade Kentucky
TENN
Allium cernuum
TENN-V-0066001 Morgan Tennessee
TENN
Allium cernuum
TENN-V-0066007 Rutherford Tennessee
TENN
Allium cernuum
TENN-V-0065982 Cumberland Tennessee
TENN
Allium cernuum
TENN-V-0065991 Johnson Tennessee
TENN
Allium cernuum
TENN-V-0065984 Claiborne Tennessee
TENN
Allium cernuum
TENN-V-0065976 Anderson Tennessee
TENN
Allium cernuum
TENN-V-0066259 Logan Kentucky
TENN
Allium cernuum
TENN-V-0066014 Warren Tennessee
TENN
Allium cernuum
UCHT005689 Cheatham Tennessee 12 Jul 2011 Clea Klagstad
311
UCHT
Allium cernuum
UCHT005691 Lewis Tennessee 08 Aug 1989 R. Kral
76885
UCHT
Allium cernuum
UCHT005686 Hamilton Tennessee 26 May 1940 F.R William
2124
UCHT
Allium cernuum
UCHT005690 Hamilton Tennessee M.S Colby
UCHT
Allium cernuum
UCHT005688 Cheatham Tennessee 21 Jun 1986 R. Kral
73531
UCHT
Allium cernuum
BEREA024502 Madison Kentucky
BEREA
Allium cernuum
BEREA024628 Madison Kentucky
BEREA
Allium cernuum
BEREA024370 Madison Kentucky
BEREA
Allium cernuum
APSC0046236 Meigs Tennessee 26 Aug 2012 Mason Brock
APSC
Allium cernuum
APSC0074947 Bath Kentucky
APSC
Allium cernuum
APSC0094104 Oldham Kentucky
APSC
Allium cernuum
APSC0094103 Jefferson Kentucky
APSC
Allium cernuum
APSC0100149 Oldham Kentucky
APSC
Allium cernuum
APSC0040713 Clay Tennessee 07 May 2015 Mason Brock
APSC
Allium cernuum
APSC0046243 Robertson Kentucky
APSC
Allium cernuum
APSC0094102 Meade Kentucky
APSC
Allium cernuum
APSC0054195 Lewis Tennessee
APSC
Allium cernuum
APSC0100049 Breckinridge Kentucky
APSC
Allium cernuum
APSC0085408 Meade Kentucky
APSC
Allium cernuum
APSC0046237 Cheatham Tennessee
APSC
Allium cernuum
APSC0078919 Breckinridge Kentucky
APSC
Allium cernuum
APSC0046239 Giles Tennessee
APSC
Allium cernuum
APSC0072060 White Tennessee
APSC
Allium cernuum
APSC0100159 Hardin Kentucky
APSC
Allium cernuum
APSC0046238 Robertson Tennessee
APSC
Allium cernuum
APSC0046242 Campbell Tennessee
APSC
Allium cernuum
APSC0104918 Cumberland Kentucky
APSC
Allium cernuum
APSC0080322 Meade Kentucky
APSC
Allium cernuum
APSC0100351 McCreary Kentucky
APSC
Allium cernuum
APSC0073682 Garrard Kentucky
APSC
Allium cernuum
APSC0068758 Garrard Kentucky
APSC
Allium cernuum
APSC0086039 Garrard Kentucky
APSC
Allium cernuum
APSC0094527 Carter Kentucky
APSC
Allium cernuum
APSC0093222 Pulaski Kentucky
APSC
Allium cernuum
HTTU001145 Wilson Tennessee
HTTU
Allium cernuum
HTTU028307 Jackson Tennessee
HTTU
Allium cernuum
HTTU001144 Putnam Tennessee
HTTU
Allium cernuum
HTTU021668 Putnam Tennessee
HTTU
Allium cernuum
HTTU028308 Jackson Tennessee
HTTU
Allium cernuum
HTTU023995 Tennessee
HTTU
Allium cernuum
HTTU028309 Jackson Tennessee
HTTU
Allium cernuum
HTTU035061 Putnam Tennessee
HTTU
Allium cernuum
HTTU008179 DeKalb Tennessee
HTTU
Allium cernuum
HTTU028306 Jackson Tennessee
HTTU
Allium cernuum
MTSU002907 Rutherford Tennessee 25 Aug 1993 Terri Hogan
MTSU
Allium cernuum
TENN-V-0244209 Cheatham Tennessee
TENN
Allium cernuum
UCHT035143 DeKalb Tennessee
UCHT
Allium cernuum
UOS06491 Franklin Tennessee 11 Sep 1999 Mary P. Priestley
UOS
Allium cernuum
UOS06492 Van Buren Tennessee 17 Jul 2002 Chris A. Fleming
UOS
Allium cernuum
UOS06490 Franklin Tennessee 21 Sep 2006 Jon Evans
UOS
Allium cernuum
SWMT00452 Tennessee 03 May 1941 Ware Polk
SWMT
Allium cernuum
SWMT00450 Tennessee 01 May 1939 Noce Gardner Baird
SWMT
Allium cernuum
SWMT00451 Tennessee 23 Apr 1941 J. Williamson
SWMT
Allium cernuum
ETSU025978 Hawkins Tennessee 01 May 2019 Frosty Levy, Elaine Walker
19141
ETSU
Allium cernuum
N/A Hawkins Tennessee 01 May 2019 Frosty Levy, Elaine Walker
ETSU
Allium cernuum
MEM018054 Hardin Kentucky 28 Jul 1978 R. Cranfill
1000
MEM
Allium cernuum
TENN-V-0245492 Washington Tennessee
TENN
Allium cernuum
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Plant Photos

Allium cernuum - Ashley B. Morris
Allium cernuum - Ashley B. Morris
Allium cernuum - Dwayne Estes
Allium cernuum - Dwayne Estes
Allium cernuum - Dwayne Estes
Allium cernuum - Dwayne Estes
Allium cernuum - Milo Pyne
Allium cernuum - Milo Pyne
Allium cernuum - Milo Pyne
Allium cernuum - Milo Pyne
Allium cernuum - Sunny Fleming
Allium cernuum - Sunny Fleming
Allium cernuum - Sunny Fleming
Allium cernuum - Sunny Fleming
Allium cernuum - Tara Littlefield
Allium cernuum - Tara Littlefield
Allium cernuum - Tara Littlefield
Allium cernuum - Tara Littlefield
Allium cernuum - Tara Littlefield
Allium cernuum - Tara Littlefield