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 album   FAMILY Asteraceae__   Go to FSUS key



INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Eupatorium album var. album   FAMILY Asteraceae__

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

Eupatorium album

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

Eupatorium album var. album

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)

Eupatorium album var. album

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-34-007:

Eupatorium album   FAMILY Asteraceae__

INCLUDING Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)

Eupatorium album var. album

INCLUDING Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)

Eupatorium album var. glandulosum

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)

Eupatorium album

 

COMMON NAME:
White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium


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

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm110415_502

April    Carroll County    GA

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm110415_509b

April    Carroll County    GA

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm200428_4421

April    Pickens County    SC

Glassy Mountain Heritage Preserve

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm200428_4422

April    Pickens County    SC

Glassy Mountain Heritage Preserve

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm230418_2637

April    Pickens County    SC

Glassy Mountain Heritage Preserve

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm230509_3109

May    Pickens County    SC

Glassy Mountain Heritage Preserve

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm230808_4843

August    Pickens County    SC

Glassy Mountain Heritage Preserve

Each head with 4-5 tiny, white, 5-lobed, tubular disk florets with 2 protruding styles, per Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019).

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm230808_4845

August    Pickens County    SC

Glassy Mountain Heritage Preserve

Lower stem pubescence typically spreading, the hairs 0.5-1mm long, per Weakley's Flora (2023).

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm230808_4848

August    Pickens County    SC

Glassy Mountain Heritage Preserve

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

Richard and Teresa Ware    rtw_eupatorium_album_2

August        

The Sandhills' only Eupatorium w lower leaves distinctly larger than upper, per Wildflowers of the Sandhills Region (Sorrie, 2011).

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm230905_5253

September    Pickens County    SC

Glassy Mountain Heritage Preserve

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm230919_5520

September    Greenville County    SC

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm230919_5521

September    Greenville County    SC

Corymb branches pubescent. Involucres cylindric; bracts long-acuminate, apices and margins white, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm151017_479

October    Columbia County    GA

Leaves elliptic to lanceolate, 5-12cm long, crenate to serrate, base cuneate, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm151017_481

October    Columbia County    GA

Hairy lower stem & coarsely toothed leaves with a tapering base, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm161001_857

October    Chesterfield County    SC

Carolina Sandhills National Wildlife Refuge

Longest petioles to 6mm, or leaves sessile, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm161001_858

September    Chesterfield County    SC

Carolina Sandhills National Wildlife Refuge

Leaves are sessile, coarsely toothed, mostly elliptical in outline, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).

image of Eupatorium album, White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium

JK Marlow    jkm161001_859

October    Chesterfield County    SC

Carolina Sandhills National Wildlife Refuge

Creamy-white flower heads are borne in a branched flat-topped inflorescence, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).

 

 

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

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Eupatorium album var. album   FAMILY Asteraceae__

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

INCLUDED WITHIN Flora of North America north of Mexico, vol. 19-20-21
Eupatorium album var. album

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)
Eupatorium album var. album

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-34-007:
Eupatorium album   FAMILY Asteraceae__

INCLUDING Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Eupatorium album var. album

INCLUDING Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Eupatorium album var. glandulosum

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)
Eupatorium album

 

Find by SCIENTIFIC NAME:

543

Forb
Perennial

Habitat: Dry woodlands, per Weakley's Flora

Native to the Carolinas & Georgia

Common (uncommon in Mountains)

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

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
Simple
Opposite
Leaves sessile, or petioles to 6mm long

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

Flower heads in corymbiform arrays

FRUIT:
Summer/Fall
Lustrous black
Achene

 

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



 


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