NameThatPlant.net: Eupatorium altissimum

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

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__

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

Eupatorium altissimum FAMILY Asteraceae__

COMMON NAME:
Tall Thoroughwort, Tall Boneset

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

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

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

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!

If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".

Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".