Cirsium muticum

ClassificationDicots
FamilyAsteraceae
Family (Traditional)Asteraceae
GenusCirsium
Species:Cirsium muticum Michx.
Common NameSwamp Thistle
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: Yes; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: GILES; Natural Area Presence: GRSM; Natural Area Presence: SGSNA; Duration: Biennial; General Ecology: Mudflat; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Mesic; Moisture Requirements: Mesic-Hydric; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Leaf Arrangement: alternate; Leaf Arrangement: basal; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Dissection: 0.5; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Petiole Type: sessile; Leaf Type: broadleaf; Leaf Type: thistle-like; Leaf Venation: pinnate; Leaflet Margins: lobed; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: Purple; Base Flower Color: White; Carpel Number/Pistil: 1; Fruit Complexity: Simple; Fruit Dehiscence: No; Fruit Type: Cypsela; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: terminal; Inflorescence Types: corymb/cyme/umbel; Inflorescence Types: head; Ovary Position: Inferior; Overall Flower Symmetry: Actinomorphic; Ovules per Carpel: 1; Perianth Present: Yes; Petal Fusion: Yes; Petal Number: 5; Pistil Complexity: Simple; Pistil Number: 1; Placentation Type: Basal; Sepal Fusion: N/A; Sepal Number: N/A; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 5; Tepal Number: N/A
C value 10
StatusNative; AGCP (OBL), EMP (OBL) (NWPL); TN[SNR] KY[S4S5] (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
Carduus muticus Carduus muticus Pers.
Cirsium bigelovii Cirsium bigelovii
Cirsium muticum var. monticola Cirsium muticum var. monticola (Fernald) Fernald
Cirsium muticum var. subpinnatifidum Cirsium muticum var. subpinnatifidum Fernald
Cnicus muticus Cnicus muticus
Cnicus muticus var. monticola Cnicus muticus var. monticola

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: Floyd (KY), Harlan (KY), Jackson (KY), Lee (KY), McCreary (KY), Menifee (KY), Pike (KY), Powell (KY), Blount (TN), Carter (TN), Cheatham (TN), Cocke (TN), Coffee (TN), Dickson (TN), Fentress (TN), Giles (TN), Grundy (TN), Johnson (TN), Lewis (TN), Maury (TN), Polk (TN), Rutherford (TN), Warren (TN), Williamson (TN), Wilson (TN)

Herbaria represented by specimen data listed below: APSC, EKY, ETSU, MTSU, TENN, UCHT

Range of years during which specimens were collected: 1897 - 2016

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100247863 Harlan Kentucky 27 Sep 1998 Ronald L. Jones
8978
EKY
Cirsium muticum
N/A Menifee Kentucky 12 Sep 1993 R.C. Clark
22964
EKY
Cirsium muticum
31234100247848 Jackson Kentucky 28 Aug 1982 Ronald L. Jones
3957
EKY
Cirsium muticum
31234100247830 Menifee Kentucky 10 Sep 1989 Carol Hanley
241
EKY
Cirsium muticum
31234100856176 Menifee Kentucky 17 Sep 1988 R.C. Clark
21903
EKY
Cirsium muticum
TENN-V-0237598 Grundy Tennessee
TENN
Cirsium muticum
TENN-V-0237597 Giles Tennessee
TENN
Cirsium muticum
TENN-V-0237596 Fentress Tennessee
TENN
Cirsium muticum
TENN-V-0237601 Warren Tennessee
TENN
Cirsium muticum
APSC0079405 Pike Kentucky
APSC
Cirsium muticum
APSC0070952 Menifee Kentucky
APSC
Cirsium muticum
APSC0074803 McCreary Kentucky
APSC
Cirsium muticum
APSC0082327 Lewis Tennessee 31 Aug 2013 Judy Redden
APSC
Cirsium muticum
APSC0070949 Menifee Kentucky
APSC
Cirsium muticum
APSC0070951 Menifee Kentucky
APSC
Cirsium muticum
31234100856184 Menifee Kentucky 06 Sep 1989 Ross C. Clark
22308
EKY
Cirsium muticum
N/A Menifee Kentucky 12 Sep 1993 Ross C. Clark
22964
EKY
Cirsium muticum
31234100247871 Powell Kentucky 22 Sep 2004 Timothy J. Weckman
8950
EKY
Cirsium muticum
31234100247855 Lee Kentucky 01 Sep 1988 Julian Campbell
EKY
Cirsium muticum
ETSU008006 Johnson Tennessee
ETSU
Cirsium muticum
TENN-V-0237599 Maury Tennessee
TENN
Cirsium muticum
TENN-V-0237600 Polk Tennessee
TENN
Cirsium muticum
TENN-V-0237735 Floyd Kentucky
TENN
Cirsium muticum
TENN-V-0237602 Williamson Tennessee
TENN
Cirsium muticum
TENN-V-0237593 Blount Tennessee
TENN
Cirsium muticum
TENN-V-0237595 Dickson Tennessee
TENN
Cirsium muticum
TENN-V-0237594 Cocke Tennessee
TENN
Cirsium muticum
APSC0074804 McCreary Kentucky
APSC
Cirsium muticum
APSC0032876 Cheatham Tennessee
APSC
Cirsium muticum
APSC0074802 McCreary Kentucky
APSC
Cirsium muticum
APSC0068905 Coffee Tennessee
APSC
Cirsium muticum
APSC0070950 Menifee Kentucky
APSC
Cirsium muticum
APSC0079404 Pike Kentucky
APSC
Cirsium muticum
APSC0079312 Harlan Kentucky
APSC
Cirsium muticum
APSC0079412 Harlan Kentucky
APSC
Cirsium muticum
ETSU034054 Carter Tennessee
ETSU
Cirsium muticum
APSC0070953 Menifee Kentucky
APSC
Cirsium muticum
APSC0072170 Lewis Tennessee 28 Oct 2016 Mason Brock
APSC
Cirsium muticum
APSC0079413 Harlan Kentucky
APSC
Cirsium muticum
APSC0081331 Williamson Tennessee
APSC
Cirsium muticum
MTSU021326 Wilson Tennessee
MTSU
Carduus muticus
MTSU021327 Rutherford Tennessee
MTSU
Carduus muticus
N/A Cocke Tennessee 11 Sep 1897 Thos H. Kearney
794
UCHT
Cirsium muticum
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Plant Photos

Cirsium muticum - Dwayne Estes
Cirsium muticum - Dwayne Estes
Cirsium muticum - Dwayne Estes
Cirsium muticum - Dwayne Estes
Cirsium muticum - Sunny Fleming
Cirsium muticum - Sunny Fleming