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Scabrous Roundleaf Thoroughwort

Eupatorium rotundifolium var. scabridum

Also listed as Eupatorium scabridum

In the Carolinas and Georgia, found in pine savannas; oak savannas and openings; forests and woodlands; roadsides, fields and disturbed ground. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you

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Not scored

Native status unresolved in Louisiana. How scores work Is it native here?

Profile 53%

Light
Partial shade, Full sun
Soil moisture
Dry to wet
Will it fit your yard?

At a glance

Bloom
July to October

Not yet recorded · Height · Spread · Life cycle · Leaves

This plant is missing most of its facts, so Quercus is looking them up in old botany books.

Recorded in 28 Louisiana parishes.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 4

Pine savannas

Open, fire-kept longleaf pine stands over grasses and wildflowers on wet to moist sandy soil.

Oak savannas and openings

Open-grown oaks over grass and wildflowers, kept open by fire or thin soil; not the treeless prairies or the Coastal Plain's pine savannas.

Forests and woodlands

Forest or woodland where the source does not say how moist or dry.

Roadsides, fields and disturbed ground

Ground opened by people: roadsides, old fields, pastures, fencerows and lots.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

34CaterpillarsGenus host records with ranges including LA

Genus host records with ranges including LA · Eupatorium

  • Anavitrinella pampinariaCommon Gray, Cranberry Spanworm
  • Carmenta bassiformisEupatorium Borer Moth, Ironweed Clearwing Moth
  • Carmenta pyralidiformisBoneset Borer Moth
  • Chlorochlamys chloroleucariaBlackberry Looper Moth
  • Chrysodeixis includensSoybean Looper Moth
  • Cisseps fulvicollisYellow-Collared Scape Moth
  • Condica vecorsDusky Groundling
  • Dichomeris setosellaHairy Dichomeris
  • Digrammia continuataCurve-Lined Angle
  • Dysodia oculatanaEyed Thyris
Show all 34
  • Estigmene acreaSalt Marsh Moth, Acrea Moth
  • Eugnosta erigeronanaFleabane Cochylid
  • Eupithecia miserulataCommon Eupithacia, Common Pug
  • Haploa clymeneClymene Moth
  • Hellinsia unicolorUnmarked Plume Moth
  • Oedemasia concinnaRed-Humped Caterpillar, Red-Humped Appleworm
  • Oenobotys vinotinctalisWine-Tinted Oenobotys Moth
  • Oidaematophorus eupatoriiEupatorium Plume Moth
  • Orthodes majusculaRustic Quaker, Rustic Groundcat
  • Ostrinia obumbratalisSmartweed Borer
  • Papaipema cataphractaBurdock Border, Potato-Stalk Borer
  • Papaipema harrisiiHeracleum Stem Borer Moth, Cow Parsnip Borer
  • Patania silicalisHerbivorous Patania, Herbivorous Pleuroptya
  • Perigea xanthioidesRed Groundling
  • Platynota flavedanaBlack-Shaded Platynota
  • Platynota rostranaOmnivorous Platynota
  • Pleuroprucha insulsariaCommon Tan Wave
  • Schinia trifasciaThree-Lined Flower Moth
  • Spoladea recurvalisHawaiian Beet Webworm
  • Synchlora frondariaSouthern Emerald
  • Tornos scolopacinariaDimorphic Gray
  • Dichomeris aglaia
  • Niasoma metallicana
  • Paralobesia slingerlandana
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
—BeesSoutheastern regional records
2Specialist beesPollen specialists

Pollen specialists · Eupatorium

  • Colletes simulans
  • Megachile xylocopoides
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
1BirdsRecorded genus food-resource interactions; not a state feeding claim

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

  • Ortalis vetulaPlain Chachalaca
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

Growing and identification

Plant details

Family
Asteraceae

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

Growing sources and scope
Also known as

Eupatorium rotundifolium var. scabridum

Conservation status

Louisiana rankSNR
Global rankNot available
LA statusNot verified
Federal statusNot verified

Conservation source

In your garden

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Sources