Cirsium discolor

ClassificationDicots
FamilyAsteraceae
Family (Traditional)Asteraceae
GenusCirsium
Species:Cirsium discolor (Muhl. ex Willd.) Spreng.
Common NameField Thistle
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: Yes; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: DRU; Natural Area Presence: FG; Natural Area Presence: GILES; Natural Area Presence: GRSM; Natural Area Presence: LC; Natural Area Presence: LGS; Natural Area Presence: LRC; Natural Area Presence: NCCGSNA; Natural Area Presence: ObedWSR; Natural Area Presence: PK; Natural Area Presence: RCSP; Natural Area Presence: SM; Natural Area Presence: TRG; Natural Area Presence: UCR; Natural Area Presence: WOLF; Duration: Biennial; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-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 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: dentate; Leaflet Margins: lobed; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: Pink; 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 2
StatusNative; AGCP (UPL), EMP (UPL) (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.

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  • 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), Allen (KY), Anderson (KY), Barren (KY), Bell (KY), Bracken (KY), Breckinridge (KY), Bullitt (KY), Caldwell (KY), Calloway (KY), Campbell (KY), Casey (KY), Clark (KY), Clinton (KY), Cumberland (KY), Edmonson (KY), Elliott (KY), Estill (KY), Fayette (KY), Fleming (KY), Franklin (KY), Garrard (KY), Grant (KY), Graves (KY), Harlan (KY), Hopkins (KY), Jackson (KY), Jefferson (KY), Kenton (KY), Knox (KY), Laurel (KY), Lawrence (KY), Letcher (KY), Lewis (KY), Lincoln (KY), Livingston (KY), Logan (KY), Lyon (KY), McCracken (KY), McCreary (KY), Madison (KY), Meade (KY), Menifee (KY), Monroe (KY), Montgomery (KY), Nelson (KY), Oldham (KY), Owen (KY), Pendleton (KY), Pike (KY), Powell (KY), Robertson (KY), Rockcastle (KY), Spencer (KY), Trigg (KY), Trimble (KY), Union (KY), Warren (KY), Wolfe (KY), Benton (TN), Bledsoe (TN), Campbell (TN), Cannon (TN), Carroll (TN), Carter (TN), Cheatham (TN), Claiborne (TN), Clay (TN), Coffee (TN), Cumberland (TN), Davidson (TN), DeKalb (TN), Franklin (TN), Giles (TN), Grainger (TN), Greene (TN), Hamilton (TN), Hardeman (TN), Haywood (TN), Henry (TN), Hickman (TN), Humphreys (TN), Johnson (TN), Knox (TN), Lauderdale (TN), Loudon (TN), McNairy (TN), Marion (TN), Marshall (TN), Maury (TN), Monroe (TN), Montgomery (TN), Overton (TN), Polk (TN), Roane (TN), Robertson (TN), Scott (TN), Shelby (TN), Stewart (TN), Sullivan (TN), Sumner (TN), Tipton (TN), Van Buren (TN), Williamson (TN)

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

Range of years during which specimens were collected: 1964 - 2018

Accession No. (click for full details)
County
State
Coll. Date
Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100248143 Adair Kentucky 25 Aug 1988 Bruce Hoagland
568
EKY
Cirsium discolor
APSC0122076 Allen Kentucky
APSC
Cirsium discolor
APSC0027087 Anderson Kentucky
APSC
Cirsium discolor
APSC0078601 Anderson Kentucky
APSC
Cirsium discolor
31234100248176 Barren Kentucky 14 Aug 1993 Charles J. Lapham
143
EKY
Cirsium discolor
31234100248150 Barren Kentucky 31 Aug 1993 Charles J. Lapham
165
EKY
Cirsium discolor
31234100248168 Barren Kentucky 31 Aug 1993 Charles J. Lapham
163
EKY
Cirsium discolor
APSC0122078 Barren Kentucky
APSC
Cirsium discolor
BEREA002930 Bell Kentucky
BEREA
Cirsium discolor
APSC0027093 Benton Tennessee
APSC
Cirsium discolor
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Plant Photos

Cirsium discolor - Ashley B. Morris
Cirsium discolor - Ashley B. Morris
Cirsium discolor - Dwayne Estes
Cirsium discolor - Dwayne Estes
Cirsium discolor - Dwayne Estes
Cirsium discolor - Dwayne Estes
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Shawn Krosnick
Cirsium discolor - Shawn Krosnick
Cirsium discolor - Sunny Fleming
Cirsium discolor - Sunny Fleming
Cirsium discolor - Sunny Fleming
Cirsium discolor - Sunny Fleming
Cirsium discolor - Theo Witsell
Cirsium discolor - Theo Witsell
Cirsium discolor - Theo Witsell
Cirsium discolor - Theo Witsell
Cirsium discolor - Theo Witsell
Cirsium discolor - Theo Witsell
Cirsium discolor - Theo Witsell
Cirsium discolor - Theo Witsell
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw
Cirsium discolor - Joey Shaw