OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Lamiales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Collinsonia tuberosa   FAMILY Lamiaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Collinsonia tuberosa   FAMILY Lamiaceae

INCLUDED WITHIN A taxonomic revision of Collinsonia (Peirson, Cantino, & Ballard, 2006)

Collinsonia canadensis

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 164-33-002:

Collinsonia tuberosa   FAMILY Lamiaceae

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

Collinsonia tuberosa

 

COMMON NAME:
Tuberous Horsebalm, Stoneroot, Deepwoods Horsebalm


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

image of Collinsonia tuberosa, Tuberous Horsebalm, Stoneroot, Deepwoods Horsebalm

John B. Nelson    jbn_1458134092_91bbf70d48

September    Berkeley County    SC

Francis Biedler Forest

Flowers pale yellow to cream with thin purple streaks; lower lip fringed, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).


click here to see other plants that look similar to this COMPARE flowers of Horsebalm species

image of Collinsonia tuberosa, Tuberous Horsebalm, Stoneroot, Deepwoods Horsebalm

Richard and Teresa Ware    rtw_c_tuberosa_2

September        

The middle lobe of the corolla's lower lip is long and lacerated, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Collinsonia tuberosa, Tuberous Horsebalm, Stoneroot, Deepwoods Horsebalm

Richard and Teresa Ware    rtw_collinsonia_tuberosa

September        

A 2-cleft long-exserted stigma and (usually) 2 long-exserted stamens, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Collinsonia tuberosa, Tuberous Horsebalm, Stoneroot, Deepwoods Horsebalm

Richard and Teresa Ware    rtw_collinsonia_tuberosa2

September    Floyd County    GA

image of Collinsonia tuberosa, Tuberous Horsebalm, Stoneroot, Deepwoods Horsebalm

Richard and Teresa Ware    rtw_collinsoniatuberosa2b

September    Floyd County    GA

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Collinsonia tuberosa   FAMILY Lamiaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Collinsonia tuberosa   FAMILY Lamiaceae

INCLUDED WITHIN A taxonomic revision of Collinsonia (Peirson, Cantino, & Ballard, 2006)
Collinsonia canadensis

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 164-33-002:
Collinsonia tuberosa   FAMILY Lamiaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Collinsonia tuberosa

 

Find by SCIENTIFIC NAME:

2109

Forb
Perennial

Habitat: Rich forests, over calcareous or mafic substrates, 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.

LEAVES:
Simple
Opposite

FLOWER:
Summer/Fall
White/Cream with purplish streaks
Bilaterally symmetrical
2-lipped calyx
2-lipped 5-lobed corolla
2 long-exserted stamens (usually)
Superior ovary
Bisexual

FRUIT:
Summer/Fall
Schizocarp of mericarps

 

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



 


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