Eupatorium semiserratum

ClassificationDicots
FamilyAsteraceae
Family (Traditional)Asteraceae
GenusEupatorium
Species:Eupatorium semiserratum DC.
Common NameSmallflower Thoroughwort
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: BE; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Mesic-Hydric; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: August; Reproductive Phenology: September; Leaf Arrangement: alternate; Leaf Arrangement: opposite; Leaf Complexity: simple; Leaf Dissection: 0; 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 5
StatusNative; AGCP (FACW), EMP (FACW) (NWPL); TN[SNR] KY[S1?] (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.

  • 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

SynonymFull Citation
Eupatorium ambiguum Eupatorium ambiguum Hook.

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: Whitley (KY), Chester (TN), Coffee (TN), Fayette (TN), Franklin (TN), Hardeman (TN), Hardin (TN), Moore (TN), Polk (TN), Warren (TN)

Herbaria represented by specimen data listed below: APSC, EKY, TENN, UCHT, UOS, VDB

Range of years during which specimens were collected: 1984 - 2019

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
TENN-V-0212054 Coffee Tennessee
TENN
Eupatorium semiserratum
BRIT94329 Tennessee
VDB
Eupatorium semiserratum
BRIT94364 Tennessee
VDB
Eupatorium semiserratum
31234100257805 Whitley Kentucky Rob Jacobs
EKY
Eupatorium semiserratum
TENN-V-0212057 Franklin Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212048 Coffee Tennessee
TENN
Eupatorium semiserratum
APSC0026305 Polk Tennessee 04 Sep 2010 D. Estes, M. Bruton, C. Kalgstad, C. Gorman, N. Parker
105
APSC
Eupatorium semiserratum
BRIT94368 Tennessee
VDB
Eupatorium semiserratum
BRIT94335 Tennessee
VDB
Eupatorium semiserratum
BRIT94367 Tennessee
VDB
Eupatorium semiserratum
TENN-V-0245367 Franklin Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212046 Coffee Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212049 Coffee Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212055 Fayette Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212047 Coffee Tennessee
TENN
Eupatorium semiserratum
APSC0050096 Moore Tennessee 12 Aug 1987 R. Kral
74150
APSC
Eupatorium semiserratum
APSC0112356 Franklin Tennessee 07 Sep 2019 Claire Ciafre
APSC
Eupatorium semiserratum
APSC0110197 Whitley Kentucky 15 Sep 1987 Max Medley
APSC
Eupatorium semiserratum
BRIT94371 Tennessee
VDB
Eupatorium semiserratum
TENN-V-0212056 Franklin Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212059 Hardeman Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212053 Coffee Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212051 Coffee Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212058 Franklin Tennessee
TENN
Eupatorium semiserratum
BRIT94330 Tennessee
VDB
Eupatorium semiserratum
BRIT94331 Tennessee
VDB
Eupatorium semiserratum
TENN-V-0212060 Hardin Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212050 Coffee Tennessee
TENN
Eupatorium semiserratum
APSC0068480 Coffee Tennessee 18 Sep 1996 R. Kral with M. Russo, D. Kennemore
86759
APSC
Eupatorium semiserratum
TENN-V-0243653 Coffee Tennessee
TENN
Eupatorium semiserratum
31234100257813 Coffee Tennessee 25 Aug 1992 Henry R. DeSelm
EKY
Eupatorium semiserratum
TENN-V-0212045 Chester Tennessee
TENN
Eupatorium semiserratum
TENN-V-0212052 Coffee Tennessee
TENN
Eupatorium semiserratum
UCHT036671 Moore Tennessee
UCHT
Eupatorium semiserratum
BRIT94365 Tennessee
VDB
Eupatorium semiserratum
UOS00873 Coffee Tennessee 18 Sep 1996 Douglas E. Kennemore, Jr.
UOS
Eupatorium semiserratum
BRIT94332 Tennessee
VDB
Eupatorium semiserratum
BRIT94370 Tennessee
VDB
Eupatorium semiserratum
BRIT94333 Tennessee
VDB
Eupatorium semiserratum
BRIT94328 Tennessee
VDB
Eupatorium semiserratum
TENN-V-0212061 Warren Tennessee
TENN
Eupatorium semiserratum
APSC0074783 Coffee Tennessee 02 Sep 1984 Max Medley
APSC
Eupatorium semiserratum
BRIT94334 Tennessee
VDB
Eupatorium semiserratum
BRIT94366 Tennessee
VDB
Eupatorium semiserratum
BRIT94369 Tennessee
VDB
Eupatorium semiserratum
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Plant Photos

Eupatorium semiserratum - Dwayne Estes
Eupatorium semiserratum - Dwayne Estes
Eupatorium semiserratum - Dwayne Estes
Eupatorium semiserratum - Dwayne Estes
Eupatorium semiserratum - Dwayne Estes
Eupatorium semiserratum - Dwayne Estes
Eupatorium semiserratum - Theo Witsell
Eupatorium semiserratum - Theo Witsell
Eupatorium semiserratum - Theo Witsell
Eupatorium semiserratum - Theo Witsell