Acorus calamus

ClassificationMonocots
FamilyAcoraceae
Family (Traditional)Acoraceae
GenusAcorus
Species:Acorus calamus L.
Common NameSweet flag
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: GRSM; Duration: Perennial; General Ecology: Aquatic; General Ecology: Mudflat; Growth Habit: forb; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: Europe; Reproductive Phenology: May; Reproductive Phenology: June; Leaf Arrangement: alternate; Leaf Arrangement: basal; Leaf Arrangement: equitant; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: Yes; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Rank: 2-ranked; Leaf Type: sword-like; Leaf Venation: parallel; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: White; Base Flower Color: Yellow; Carpel Number/Pistil: 3; Fruit Complexity: Need more information; Fruit Type: Berry; Fruit Type: Capsule; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: axillary; Inflorescence Types: spadix; Inflorescence Types: spike; Ovary Position: Superior; Overall Flower Symmetry: Actinomorphic; Ovules per Carpel: 2; Ovules per Carpel: 3; Ovules per Carpel: 4; Ovules per Carpel: 5; Perianth Present: Yes; Petal Fusion: N/A; Petal Number: N/A; Pistil Complexity: Compound; Pistil Number: 1; Placentation Type: Axillary; Placentation Type: Apical; Sepal Fusion: N/A; Sepal Number: N/A; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 6; Tepal Number: 6
C value N/A
StatusNot Native; AGCP (OBL), EMP (OBL) (NWPL); TN[SNR] KY[SNA] (State Rank); G4? (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

No synonyms exist for this species.

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: Adair (KY), Ballard (KY), Bell (KY), Calloway (KY), Casey (KY), Edmonson (KY), Estill (KY), Fleming (KY), Floyd (KY), Hardin (KY), Henry (KY), Jackson (KY), Jefferson (KY), Kenton (KY), Laurel (KY), Lee (KY), Leslie (KY), Letcher (KY), McCracken (KY), Madison (KY), Marshall (KY), Montgomery (KY), Nelson (KY), Oldham (KY), Pendleton (KY), Perry (KY), Powell (KY), Rockcastle (KY), Rowan (KY), Trigg (KY), Whitley (KY), Anderson (TN), Benton (TN), Carter (TN), Davidson (TN), Giles (TN), Hamilton (TN), Hawkins (TN), Henry (TN), Hickman (TN), Houston (TN), Johnson (TN), Knox (TN), Meigs (TN), Monroe (TN), Montgomery (TN), Polk (TN), Rhea (TN), Roane (TN), Sevier (TN), Shelby (TN), Stewart (TN), Sullivan (TN), Sumner (TN), Tipton (TN), Van Buren (TN), Washington (TN), Williamson (TN)

Herbaria represented by specimen data listed below: APSC, BEREA, BOON, EKY, ETSU, KNK, MDKY, MEM, TENN, UCHT

Range of years during which specimens were collected: 1962 - 2019

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100034535 Henry Kentucky 08 Sep 1962 Elizabeth M. Browne
6318
EKY
Acorus calamus
31234100034626 Rockcastle Kentucky 15 May 1995 Timothy J. Weckman
1404
EKY
Acorus calamus
31234100034659 Rockcastle Kentucky 04 Jun 1984 Ronald L. Jones
4299
EKY
Acorus calamus
31234100034519 Estill Kentucky 19 Jul 1978 Marcus Camacho
23
EKY
Acorus calamus
TENN-V-0058576 Stewart Tennessee
TENN
Acorus calamus
TENN-V-0058589 Ballard Kentucky
TENN
Acorus calamus
TENN-V-0058565 Johnson Tennessee
TENN
Acorus calamus
TENN-V-0058567 Knox Tennessee
TENN
Acorus calamus
TENN-V-0058580 Williamson Tennessee
TENN
Acorus calamus
TENN-V-0058559 Giles Tennessee
TENN
Acorus calamus
TENN-V-0242196 Meigs Tennessee
TENN
Acorus calamus
APSC0070775 Hardin Kentucky
APSC
Acorus calamus
APSC0070777 Perry Kentucky
APSC
Acorus calamus
APSC0046485 Polk Tennessee
APSC
Acorus calamus
APSC0046486 Van Buren Tennessee
APSC
Acorus calamus
31234100034576 Letcher Kentucky 06 Jul 1979 Jeffrey D. Sole
783
EKY
Acorus calamus
31234100034675 Whitley Kentucky 04 Jul 1992 E. Laudermilk
EKY
Acorus calamus
31234100034550 Lee Kentucky 30 Jun 1996 T. J. Weckman
2948
EKY
Acorus calamus
31234100034717 Henry Tennessee 11 May 1979 Henry R. DeSelm
21
EKY
Acorus calamus
31234100034642 Rockcastle Kentucky 30 Jun 1984 Valerya Hyrne
30
EKY
Acorus calamus
BEREA001047 Rockcastle Kentucky 28 Jun 1991 J. Richard Abbott, F. Dale Noe, Jr.
752
BEREA
Acorus calamus
TENN-V-0058561 Hawkins Tennessee
TENN
Acorus calamus
TENN-V-0058590 Bell Kentucky
TENN
Acorus calamus
TENN-V-0058566 Knox Tennessee
TENN
Acorus calamus
TENN-V-0241384 Johnson Tennessee
TENN
Acorus calamus
UCHT004715 Meigs Tennessee 26 Jul 2007 David H. Webb
6671
UCHT
Acorus calamus
005626 Shelby Tennessee 30 Nov 1977 Bates, VM with J Files and LA Wilmot
BOON
Acorus calamus
005627 Knox Tennessee 28 Apr 1968
BOON
Acorus calamus
APSC0070778 Nelson Kentucky
APSC
Acorus calamus
31234100034493 Ballard Kentucky 24 Jun 1974 Raymond Athey
2819
EKY
Acorus calamus
31234100034485 Adair Kentucky 30 May 1988 Bruce Hoagland
125
EKY
Acorus calamus
TENN-V-0058579 Tipton Tennessee
TENN
Acorus calamus
TENN-V-0058573 Roane Tennessee
TENN
Acorus calamus
TENN-V-0058574 Sevier Tennessee
TENN
Acorus calamus
TENN-V-0058571 Knox Tennessee
TENN
Acorus calamus
TENN-V-0058570 Knox Tennessee
TENN
Acorus calamus
APSC0070659 McCracken Kentucky
APSC
Acorus calamus
APSC0046480 Stewart Tennessee
APSC
Acorus calamus
APSC0073653 Floyd Kentucky
APSC
Acorus calamus
31234100034600 Montgomery Kentucky 31 May 1984 Julian Campbell
318
EKY
Acorus calamus
31234100034667 Trigg Kentucky 15 May 1976 Raymond Athey
3373
EKY
Acorus calamus
31234100034543 Laurel Kentucky 15 May 1979 Richard H. Hannan
1626
EKY
Acorus calamus
BEREA001043 Jackson Kentucky 11 May 1994 Ralph L. Thompson, J. Richard Abbott
94-180
BEREA
Acorus calamus
TENN-V-0058577 Sumner Tennessee
TENN
Acorus calamus
TENN-V-0058591 Trigg Kentucky
TENN
Acorus calamus
TENN-V-0058554 Anderson Tennessee
TENN
Acorus calamus
TENN-V-0058578 Sullivan Tennessee
TENN
Acorus calamus
TENN-V-0058563 Hickman Tennessee
TENN
Acorus calamus
TENN-V-0058564 Johnson Tennessee
TENN
Acorus calamus
APSC0046483 Knox Tennessee
APSC
Acorus calamus
APSC0046481 Trigg Kentucky
APSC
Acorus calamus
APSC0046482 Benton Tennessee
APSC
Acorus calamus
APSC0067611 Meigs Tennessee
APSC
Acorus calamus
31234100034568 Fleming Kentucky 02 Jul 1999 Kim Feeman
550
EKY
Acorus calamus
31234100034634 Rockcastle Kentucky 15 May 1995 Timothy J. Weckman
1404
EKY
Acorus calamus
31234100034592 Madison Kentucky 08 Jul 1975 J. Stuart Lassetter
2437
EKY
Acorus calamus
BEREA001044 Madison Kentucky 09 Jun 1993 Gary W. Libby
OB-398
BEREA
Acorus calamus
31973000004861 Kenton Kentucky 01 Aug 1978 Applegarth, Patrick
434
KNK
Acorus calamus
TENN-V-0242217 Rhea Tennessee
TENN
Acorus calamus
TENN-V-0058562 Henry Tennessee
TENN
Acorus calamus
UCHT004716 Tennessee 12 Apr 1977 Ron Bassler
UCHT
Acorus calamus
UCHT004717 Rhea Tennessee 06 Aug 2009 David H. Webb
7091
UCHT
Acorus calamus
APSC0070660 Rhea Tennessee
APSC
Acorus calamus
APSC0046487 Van Buren Tennessee
APSC
Acorus calamus
APSC0046484 Tennessee
APSC
Acorus calamus
MDKY00002144 Lee Kentucky
MDKY
Acorus calamus
MDKY00002145 Leslie Kentucky
MDKY
Acorus calamus
MDKY00003092 Fleming Kentucky
MDKY
Acorus calamus
MDKY00002143 Ballard Kentucky
MDKY
Acorus calamus
TENN-V-0058558 Davidson Tennessee
TENN
Acorus calamus
TENN-V-0058560 Hamilton Tennessee
TENN
Acorus calamus
APSC0046492 Giles Tennessee
APSC
Acorus calamus
APSC0071163 Montgomery Tennessee
APSC
Acorus calamus
APSC0070780 Oldham Kentucky
APSC
Acorus calamus
MEM005915 McCracken Kentucky 25 Apr 1972 Raymond Athey
1621
MEM
Acorus calamus
MEM005933 Calloway Kentucky 05 May 1972 Raymond Athey
1645
MEM
Acorus calamus
MEM003609 Henry Kentucky 29 Sep 1962 J.L. Gentry Jr.
809
MEM
Acorus calamus
MEM006338 Marshall Kentucky 25 May 1973 Raymond Athey
2311
MEM
Acorus calamus
MDKY00002148 Rowan Kentucky
MDKY
Acorus calamus
31234100034584 Madison Kentucky 08 Jul 1975 Richard H. Hannan
EKY
Acorus calamus
31234100034618 Powell Kentucky Donald K. Walker
520
EKY
Acorus calamus
31234100034527 Floyd Kentucky 17 Jul 1991 John Osborne
27
EKY
Acorus calamus
31234100768454 Kentucky 12 Jul 1979 Dell Sasser
293
EKY
Acorus calamus
BEREA001045 Madison Kentucky 03 Jun 1996 Chris A. Fleming, Ralph L. Thompson
R-696
BEREA
Acorus calamus
MDKY00002146 Rowan Kentucky
MDKY
Acorus calamus
MDKY00002147 Rowan Kentucky
MDKY
Acorus calamus
TENN-V-0058569 Knox Tennessee
TENN
Acorus calamus
TENN-V-0058575 Shelby Tennessee
TENN
Acorus calamus
APSC0046489 Houston Tennessee
APSC
Acorus calamus
APSC0077314 Hardin Kentucky
APSC
Acorus calamus
APSC0070774 Jefferson Kentucky
APSC
Acorus calamus
APSC0046488 Montgomery Tennessee
APSC
Acorus calamus
APSC0100117 Montgomery Tennessee
APSC
Acorus calamus
31234100034501 Casey Kentucky 25 Jun 1980 J. Stuart Lassetter
3528
EKY
Acorus calamus
BEREA001046 Madison Kentucky 16 Aug 1995 Ralph L. Thompson, Rudy A. Gelis
R-272
BEREA
Acorus calamus
ETSU001402 Washington Tennessee
ETSU
Acorus calamus
N/A Carter Tennessee 01 Aug 2012 Frosty Levy
ETSU
Acorus calamus
31973000004860 Pendleton Kentucky 21 Aug 1983 Buddell, George
3181
KNK
Acorus calamus
TENN-V-0058568 Knox Tennessee
TENN
Acorus calamus
TENN-V-0058572 Monroe Tennessee
TENN
Acorus calamus
APSC0068192 Edmonson Kentucky
APSC
Acorus calamus
N/A Hawkins Tennessee 25 Jun 2019 Frosty Levy, Elaine Walker
ETSU
Acorus calamus
ETSU026343 Hawkins Tennessee 25 Jun 2019 Frosty Levy, Elaine Walker
19508
ETSU
Acorus calamus
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Plant Photos

Acorus calamus - Joey Shaw
Acorus calamus - Joey Shaw
Acorus calamus - Theo Witsell
Acorus calamus - Theo Witsell
Acorus calamus - Theo Witsell
Acorus calamus - Theo Witsell
Acorus calamus - Joey Shaw
Acorus calamus - Joey Shaw
Acorus calamus - Joey Shaw
Acorus calamus - Joey Shaw