OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Eupatorium rotundifolium   FAMILY Asteraceae__   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Eupatorium rotundifolium var. rotundifolium   FAMILY Asteraceae__

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Eupatorium rotundifolium var. rotundifolium

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)

Eupatorium rotundifolium var. rotundifolium

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)

Eupatorium rotundifolium var. rotundifolium

INCLUDED WITHIN Aquatic & Wetland Plants of Southeastern US (Godfrey & Wooten, 1979 & 1981)

Eupatorium rotundifolium

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-34-016a:

Eupatorium rotundifolium var. rotundifolium   FAMILY Asteraceae__

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Eupatorium rotundifolium

 

COMMON NAME:
Common Roundleaf Boneset, Common Roundleaf Thoroughwort, Common Roundleaf Eupatorium


         To see larger pictures, click or hover over the thumbnails.

image of Eupatorium rotundifolium, Common Roundleaf Boneset, Common Roundleaf Thoroughwort, Common Roundleaf Eupatorium

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_euve4_001_lvd

        

image of Eupatorium rotundifolium, Common Roundleaf Boneset, Common Roundleaf Thoroughwort, Common Roundleaf Eupatorium

JK Marlow    jkm0505q_08

May    Williamsburg County    SC

The 2 sides of each tooth usually distinctly convex-curved, the tooth therefore rounded, per Weakley's Flora (2022).

image of Eupatorium rotundifolium, Common Roundleaf Boneset, Common Roundleaf Thoroughwort, Common Roundleaf Eupatorium

JK Marlow    jkm0407d_32

July    Greenville County    SC

Ashmore Heritage Preserve

image of Eupatorium rotundifolium, Common Roundleaf Boneset, Common Roundleaf Thoroughwort, Common Roundleaf Eupatorium

JK Marlow    jkm0407d_33

July    Greenville County    SC

Ashmore Heritage Preserve

Leaf apex usually ≥ 90º, the 2 principal lateral veins diverging directly from base of midrib, per Weakley's Flora (2022).

image of Eupatorium rotundifolium, Common Roundleaf Boneset, Common Roundleaf Thoroughwort, Common Roundleaf Eupatorium

JK Marlow    jkm0507j_37

July    Greenville County    SC

Wildcat Falls Wayside Park

Heads numerous, in a flat-topped corymb with opposite, hairy branches, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).

image of Eupatorium rotundifolium, Common Roundleaf Boneset, Common Roundleaf Thoroughwort, Common Roundleaf Eupatorium

Keith Bradley    kab_e_rotundifolium_72963

August    Collier County    FL

Big Cypress National Preserve

image of Eupatorium rotundifolium, Common Roundleaf Boneset, Common Roundleaf Thoroughwort, Common Roundleaf Eupatorium

JK Marlow    jkm180914_4738

September    Greenville County    SC

image of Eupatorium rotundifolium, Common Roundleaf Boneset, Common Roundleaf Thoroughwort, Common Roundleaf Eupatorium

Patrick D. McMillan    pdmerotundifoli_oceanbay

Month Unknown    Horry County    SC

Lewis Ocean Bay Heritage Preserve

Involucres 5-flowered, bracts obtuse to acute, apices and margins white, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Eupatorium rotundifolium   FAMILY Asteraceae__

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Eupatorium rotundifolium var. rotundifolium   FAMILY Asteraceae__

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Eupatorium rotundifolium var. rotundifolium

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21
Eupatorium rotundifolium var. rotundifolium

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Eupatorium rotundifolium var. rotundifolium

INCLUDED WITHIN Aquatic & Wetland Plants of Southeastern US (Godfrey & Wooten, 1979 & 1981)
Eupatorium rotundifolium

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-34-016a:
Eupatorium rotundifolium var. rotundifolium   FAMILY Asteraceae__

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Eupatorium rotundifolium

 

Find by SCIENTIFIC NAME:

555

Forb
Perennial

Habitat: pine savannas, seepage bogs, moist to dry woodlands, per Weakley's Flora

Native to the Carolinas & Georgia

Common in Coastal Plain, uncommon in Piedmont, rare in Mountains

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

LEAVES:
Simple
Opposite
Leaves sessile, or petioles to 3mm long

FLOWER:
Summer/Fall
Disc: White
Rays: Absent
Inferior ovary

FRUIT:
Summer/Fall
Lustrous black
Achene

 

TO LEARN MORE about this plant, look it up in a good book!



 


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