Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (10/20/20):
Eupatorium altissimum
FAMILY
Asteraceae__
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Tall Thoroughwort at Vascular Plants of North Carolina.
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.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_eual3_001_lvd
)
Richard and Teresa Ware rtw_e_altissimum_6
August
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Terry Holdsclaw tdh_e_altissimum_0114
September Iredell County NC
)
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 (Carman, 2005).
)
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).
)
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).
)
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 (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
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
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
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!
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p080
- Wildflowers of Tennessee (Carman, 2005) p294
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p342?