OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (10/20/20):
Eupatorium altissimum   FAMILY Asteraceae__   NEW! Click to go to FSUS key


INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Eupatorium altissimum   FAMILY Asteraceae__

INCLUDED WITHIN Flora of North America
Eupatorium altissimum

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-34-009:
Eupatorium altissimum   FAMILY Asteraceae__

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

 

COMMON NAME:
Tall Thoroughwort, Tall Boneset


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

image of Eupatorium altissimum, Tall Thoroughwort, Tall Boneset

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_eual3_001_lvd

        

image of Eupatorium altissimum, Tall Thoroughwort, Tall Boneset

Richard and Teresa Ware    rtw_e_altissimum_6

August        

image of Eupatorium altissimum, Tall Thoroughwort, Tall Boneset

Terry Holdsclaw    tdh_e_altissimum_0114

September    Iredell County    NC

image of Eupatorium altissimum, Tall Thoroughwort, Tall Boneset

Terry Holdsclaw    tdh_e_altissimum_0120

September    Iredell County    NC

Leaves numerous, opposite, 2-6" long and 0.3-1.2" wide, per Wildflowers of Tennessee.

image of Eupatorium altissimum, Tall Thoroughwort, Tall Boneset

Terry Holdsclaw    tdh_e_altissimum_2

September    Lincoln County    NC

Stout perennial from 3 to 6' tall, with a mostly hairy stem, per Wildflowers of Tennessee.

image of Eupatorium altissimum, Tall Thoroughwort, Tall Boneset

Terry Holdsclaw    tdh_e_altissimum_2b

September    Lincoln County    NC

Lvs hairy, lance-elliptic, strongly 3-nerved to base, toothed above middle, per Wildflowers of Tennessee.

image of Eupatorium altissimum, Tall Thoroughwort, Tall Boneset

Terry Holdsclaw    tdh_e_altissimum_3

September    Lincoln County    NC

Disc flwrs white to cream-colored. Involucral bracts rounded, overlapping, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

 

WEAKLEY'S FLORA (10/20/20):
Eupatorium altissimum   FAMILY Asteraceae__

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Eupatorium altissimum   FAMILY Asteraceae__

INCLUDED WITHIN Flora of North America
Eupatorium altissimum

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-34-009:
Eupatorium altissimum   FAMILY Asteraceae__

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

 

Find by SCIENTIFIC NAME:

3471

Forb
Perennial

Native to the Carolinas & Georgia

Rare in GA, NC, SC

Habitat: woodlands, old fields, woodland borders, and openings over mafic rocks (such as diabase) or calcareous rocks (such as limestone and calcareous sandstone), per Weakley's Flora

map
NEW! Click here to see a map from Weakley's Flora of the Southeastern US showing range and abundance.

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
Petioles obscured by decurrent blade

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

Flowers in flat-topped corymbs

FRUIT:
Summer/Fall
Lustrous black
Achene

 

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



 


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