Eupatorium scabridum

Family (Traditional)Asteraceae
Species:Eupatorium scabridum Elliott
Common NameRoundleaf thoroughwort
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: FCFSP; Natural Area Presence: FG; Natural Area Presence: LRC; Natural Area Presence: NCCGSNA; Natural Area Presence: TRG; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Region of Origin: North America; Reproductive Phenology: July; Reproductive Phenology: August; Leaf Arrangement: alternate; Leaf Arrangement: opposite; Leaf Complexity: simple; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Petiole Type: subsessile; Leaf Type: broadleaf; Leaflet Margins: serrate; Leaflet Number: 0; Anther Type: Basifixed; 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 4
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** Not applicable or data not available.

Currently no photos are available for this plant.

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
  • 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


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: Carter (TN), Unicoi (TN)

Herbaria represented by specimen data listed below: ETSU

Range of years during which specimens were collected: 2014 - 2019

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
ETSU009421 Unicoi Tennessee 05 Oct 2014 Frosty Levy
Eupatorium scabridum
ETSU005934 Unicoi Tennessee 02 Aug 2015 Frosty Levy
Eupatorium scabridum
ETSU012211 Carter Tennessee
Eupatorium scabridum
ETSU026680 Carter Tennessee 03 Sep 2019 Frosty Levy, Elaine Walker
Eupatorium scabridum
N/A Carter Tennessee 16 Aug 2015 Frosty Levy
Eupatorium scabridum
N/A Unicoi Tennessee 25 Oct 2014 Frosty Levy
Eupatorium scabridum
ETSU006314 Carter Tennessee 29 Aug 2015 Frosty Levy
Eupatorium scabridum
N/A Carter Tennessee 03 Sep 2019 Frosty Levy, Elaine Walker
Eupatorium scabridum
ETSU012210 Carter Tennessee
Eupatorium scabridum
ETSU006100 Tennessee 06 Aug 2016 Frosty Levy
Eupatorium scabridum
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