Collinsonia punctata

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Collinsonia punctata
Collinsonia punctata NRCS.jpg
Photo by from USDA NRCS Plants Database.
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicots
Order: Lamiales
Family: Lamiaceae
Genus: Collinsonia
Species: C. punctata
Binomial name
Collinsonia punctata
Natural range of Collinsonia punctata[1]

Common Names: Florida Horsebalm;[1] Blue Ridge Horsebalm[2]

Taxonomic Notes

Synonym: Collinsonia serotina Walter.[3]

The taxanomic identification of this species seems highly debated in the literature.[4] Collinsonia punctata is almost identical to Collinsonia anisata except for its different scent and the number of stamen (two).[5][6] In a 2006 manuscript, C. punctata is recognized as having two stamens instead of four and being an intermediate between C. canadensis and Collinsonia anisata.[4]


Collinsonia punctata is a dioecious perennial forb/herb.[2]


This species occurs from southern South Carolina to eastern Louisiana along the coastal plain.[1]



C. punctata is found in rich woods.[1] It has been observed to be frequent in a mesic coastal and calcareous hammock.[7]

Associated species: Quercus sp., Carya sp., Magnolia sp., Sabal sp., and Schizandra sp.[7]


In the southeastern and mid-Atlantic United States, flowering occurs in late August to mid-October and fruiting from September through October.[1] C. punctata has also been observed to flower and fruit in November.[7]

Herbivory and toxicology

C. serotina composes 2-5% of the diet for some terrestrial birds.[8]

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 1.3 1.4 Weakley, Alan S. 2015. Flora of the Southern and Mid-Atlantic States: Working Draft of 21 May 2015. University of North Carolina, Chapel Hill, North Carolina.
  2. 2.0 2.1 USDA NRCS (2016) The PLANTS Database (, 15 February 2018). National Plant Data Team, Greensboro, NC 27401-4901 USA.
  3. Weakley, A.S. 2015. Flora of the southern and mid-atlantic states. Working Draft of 21 May 2015. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  4. 4.0 4.1 Peirson JA, Cantino PD, Ballard, Jr. HE (2006) A taxonomic revision of Collinsonia (Lamiaceae) based on phenetic analyses of morphological variation. Systematic Botany 31(2):398-409.
  5. Sims J (1809) Collinsonia anisata Curtis's Botanical Magazine 30:t.1213.
  6. Ward DB (2014) Thomas Walter typification project, VII: Observations on the genus Collinsonia (Labiatae) and a neotype for C. serotina Walter. Phytoneuron 89:1-5.
  7. 7.0 7.1 7.2 Florida State University Robert K. Godfrey Herbarium database. URL: Last accessed: April 2019. Collectors: Loran C. Anderson. States and Counties: Florida: Wakulla.
  8. Miller JH, Miller KV (1999) Forest plants of the southeast and their wildlife uses. Southern Weed Science Society.