Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Lamiales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Collinsonia canadensis
FAMILY
Lamiaceae
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
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Collinsonia canadensis
COMMON NAME:
Northern Horsebalm, Citronella, Canada Stoneroot, Canada Horsebalm
To see larger pictures, click or hover over the thumbnails.
JK Marlow jkm200415_3905
April Greenville County SC
Tall Pines Wildlife Management Area
Upper leaf surface is hairless to sparsely short-pubescent, per www.illinoiswildflowers.info.
JK Marlow jkm200415_3906
April Greenville County SC
Tall Pines Wildlife Management Area
Leaves 2-6" long, usually ovate in shape, margins coarsely serrate-crenate, per www.illinoiswildflowers.info.
JK Marlow jkm230531_3681
May Greenville County SC
Tall Pines Wildlife Management Area
3 or more pairs of oval leaves, spaced rather evenly along the stem, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
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 (Smith, 1998).
JK Marlow jkm210903_3278
September Greenville County SC
Tall Pines Wildlife Management Area
Calyx zygomorphic, 2-lipped, upper lip 3-toothed, lower lip with 2 long teeth, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
JK Marlow jkm230927_5666
September Pickens County SC
Laurel Fork Heritage Preserve
Middle lobe of lower lip lacerated; stigma 2-cleft & long-exserted; stamens 2, long-exserted, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
COMPARE flowers of Horsebalm species
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
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
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Collinsonia canadensis
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