Quercus

Field Thistle

Cirsium discolor

Native to South Carolina (estimated)

Ecological relationships

Who uses this plant?

32CaterpillarsGenus host records with ranges including SC

Genus host records with ranges including SC · Cirsium

  • Achyra rantalisGarden Webworm Moth
  • Anagrapha falciferaCelery Looper Moth
  • Autographa precationisCommon Looper Moth
  • Calephelis virginiensisNorthern Metalmark
  • Cenopis reticulatanaReticulated Fruitworm Moth
  • Choristoneura rosaceanaOblique-Banded Leafroller Moth, Rosaceous Leaf Roller
  • Dicymolomia julianalisJulia's Dicymolomia
  • Epiblema scudderianaScudder's Epiblema, Goldenrod Gall Moth
  • Homoeosoma electellaSunflower Moth
  • Lipocosmodes fuliginosalisSooty Lipocosmodes
Show all 32
  • Megalographa bilobaBilobed Looper Moth
  • Orthodes cynicaCynical Quaker, Cynical Groundcat
  • Papaipema arctivorensNorthern Burdock Borer Moth
  • Papaipema cataphractaBurdock Border, Potato-Stalk Borer
  • Papaipema insulidensRagwort Stem Borer
  • Papaipema nebrisStalk Borer
  • Papilio glaucusEastern Tiger Swallowtail
  • Paralobesia viteanaAmerican Vine Moth, Grape Berry Moth
  • Phlogophora irisOlive Angle Shades
  • Phyciodes tharosPearl Crescent, Crescentspot
  • Phycitodes reliquellaWhite-Edged Phycitodes
  • Platyptilia carduidactylusArtichoke Plume Moth
  • Pyrausta subsequalisMottled Pyrausta
  • Synchlora frondariaSouthern Emerald
  • Udea rubigalisCelery Leaftier
  • Vanessa carduiPainted Lady, Cosmopolite
  • Vanessa virginiensisAmerican Lady, American Painted Lady
  • Walshia miscecolorellaSweetclover Root Borer Moth
  • Xestia dolosaGreater Black-Letter Dart, Greater Spotted Cutworm
  • Hedya cyanana
  • Homoeosoma pedionnastes
  • Pseudotelphusa carduiella
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
60BeesSoutheastern regional records

Southeastern regional records · Cirsium

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
12Specialist beesPollen specialists

Pollen specialists · Cirsium

  • Andrena nubecula
  • Andrena placata
  • Andrena runcinatae
  • Andrena simplex
  • Diadasia enavata
  • Megachile pugnata
  • Melissodes confusus
  • Melissodes desponsus
  • Melissodes illatus
  • Melissodes rivalis
Show all 12
  • Osmia chalybea
  • Osmia texana
Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
6BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Cirsium

  • Callipepla californicaCalifornia Quail
  • Columbina passerinaCommon Ground Dove
  • Meleagris gallopavoWild Turkey
  • Perdix perdixGray Partridge
  • Spizella pusillaField Sparrow
  • Zenaida macrouraMourning Dove
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
Beetles 1
  • Diabrotica longicornis

Flower visits · Carlinville, Illinois, USA

Flies 2
  • Exoprosopa fasciata
  • Systoechus vulgaris

Flower visits · Carlinville, Illinois, USA

Adult butterflies / moths 7
  • Anosia plexippus
  • Argynnis cybele
  • Deilephila lineata
  • Hemaris thysbe
  • Papilio asterias
  • Speyeria idalia
  • Vanessa cardui

Flower visits · Carlinville, Illinois, USA

No records yet · Ants · Other wasps · Other insects

Growing and identification

Plant details

Family
Asteraceae
Hardiness
Zones 3a–9b
Flower color
Pink, purple or white

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Carduus discolor; Field Thistle; plumeless thistle; plumeless-thistle

Conservation status

South Carolina rankNot available
Global rankG5
SC statusNot verified
Federal statusNot verified

Conservation source Global and federal source

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