Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Lamiales
WEAKLEY'S FLORA (11/30/12):
Collinsonia canadensis
FAMILY
Lamiaceae
NEW! Click to go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Northern Horsebalm at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Collinsonia canadensis
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) 164-33-001:
Collinsonia canadensis
FAMILY
Lamiaceae
COMMON NAME:
Northern Horsebalm, Citronella, Canada Stoneroot, Canada Horsebalm
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_coca4_001_lvd
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JK Marlow jkm200415_3905
April Greenville County SC
Upper leaf surface is hairless to sparsely short-pubescent, per www.illinoiswildflowers.info.
)
JK Marlow jkm200415_3906
April Greenville County SC
Leaves 2-6" long, usually ovate in shape, margins coarsely serrate-crenate, per www.illinoiswildflowers.info.
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JK Marlow jkm220427_7323
April Greenville County SC
)
JK Marlow jkm220427_7326
April Greenville County SC
)
JK Marlow jkm100515_103
May Henderson County NC
Pisgah National Forest: Pisgah Ranger District
)
JK Marlow jkm120704_435
July Greenville County SC
Ashmore Heritage Preserve
)
Gill Newberry gn08_c_canadensis
August
3 or more pairs of oval leaves, spaced rather evenly along the stem, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
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JK Marlow jkm150827_980
August Haywood County NC
Corneille Bryan Native Garden
)
JK Marlow jkm0309l_02
September Rutherford County NC
Chimney Rock Park
)
JK Marlow jkm0509l_18
September Transylvania County NC
Silver Run Preserve
An open pyramidal panicle of lemon-scented yellow flowers, per Wildflowers of the Southern Mountains.
)
JK Marlow jkm210903_3276
September Greenville County SC
)
JK Marlow jkm210903_3278
September Greenville County SC
Calyx zygomorphic, 2-lipped, upper lip 3-toothed, lower lip with 2 long teeth, per Vascular Flora of the Carolinas.
)
JK Marlow jkm210903_3280
September Greenville County SC
)
JK Marlow jkm210903_3282
September Greenville County SC
A 2-cleft long-exserted stigma and (usually) 2 long-exserted stamens, per Vascular Flora of the Carolinas.
COMPARE
flowers of Horsebalm species
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JK Marlow jkm211112_4915
November Greenville County SC
)
JK Marlow jkm211112_4916
November Greenville County SC
)
JK Marlow jkm211112_4917
November Greenville County SC
WEAKLEY'S FLORA (11/30/12):
Collinsonia canadensis
FAMILY
Lamiaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Collinsonia canadensis
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) 164-33-001:
Collinsonia canadensis
FAMILY
Lamiaceae
352
Forb
Perennial
Native to the Carolinas & Georgia
Habitat: cove forests, rich forests, especially over calcareous or mafic substrates, per Weakley's Flora
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
FLOWER:
Summer/Fall
Yellow
Bisexual
Bilaterally symmetrical
2-lipped calyx
2-lipped 5-lobed corolla
2 long-exserted stamens (usually)
Superior ovary
FRUIT:
Summer/Fall
Schizocarp of mericarps
TO LEARN MORE about this plant, look it up in a good book!
- Forest Plants of the Southeast and Their Wildlife Uses p038
- Guide to the Wildflowers of SC p138
- Newcomb's Wildflower Guide p082
- Southern Appalachian Wildflowers p096
- Wildflowers of the Atlantic Southeast p225
- Wildflowers of the Eastern United States p084
- Wildflowers in the Field and Forest p206
- Wild Flowers of NC, 2nd edition p221
- Wildflowers of Tennessee p218
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians p258
- Wildflowers of the Southern Mountains p146