States
North CarolinaTennesseeGeorgiaSouth CarolinaKentuckyAlabamaArkansasFloridaLouisianaMississippiVirginiaWest Virginia
Menu

Roundleaf Thoroughwort

Eupatorium rotundifolium

In the Carolinas and Georgia, found in pine savannas, seepage bogs, moist to dry woodlands, roadsides. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you

81
Keystone

Native to Louisiana (estimated). How scores work Is it native here?

Profile 100%

Height
Up to about 3 feet
Light
Full sun, Partial shade
Soil moisture
Somewhat dry to moist
Will it fit your yard?

At a glance

Life cycle
Perennial
Bloom
Summer and fall

Not yet recorded · Spread · Leaves

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 5

Pine savannas

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

Coastal Plain seepage bogs

Open, wet, seepage-fed bogs of the Coastal Plain and Sandhills, often with pitcher plants.

Forests and woodlands

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

Dry forests and woodlands

Forests and open woodlands on dry ridges and slopes, often oak or pine.

Roadsides, fields and disturbed ground

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

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Louisiana. Shared habitat, not food. 101 animals.

All wildlife of Louisiana

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)
34BeesSoutheastern regional records

Southeastern regional records · Eupatorium

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
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

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Asteraceae
Hardiness
Zones 4a–8b
Soil pH
Neutral
Flower color
White

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

Growing sources and scope

Conservation status

Louisiana rankSNR
Global rankG5
LA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.

Choose a county to begin.

How to check your spot

Sources