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 altissimum   FAMILY Asteraceae__   Go to FSUS key



INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Eupatorium altissimum   FAMILY Asteraceae__

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

Eupatorium altissimum

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

Eupatorium altissimum

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

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

Alan S. Weakley    asw_795638648610706

May    Granville County    NC

Lvs 5-12cm x 5-20mm, glandular-punctate, densely puberulent, hairs fairly long, curling or twisted, per Weakley's Flora.

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

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 (Carman, 2005).

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 (Carman, 2005).

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 (Horn, Cathcart, Hemmerly, & Duhl, 2005).

 

 

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

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Eupatorium altissimum   FAMILY Asteraceae__

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

INCLUDED WITHIN Flora of North America north of Mexico, vol. 21
Eupatorium altissimum

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

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

Native to the Carolinas & Georgia

Rare

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
Petioles obscured by decurrent blade

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

Flowers in flat-topped corymbs

FRUIT:
Summer/Fall
Lustrous black
Achene

 

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



 


Find by SCIENTIFIC NAME: