Collinsonia verticillata

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Lamiales

Familia: Lamiaceae
Subfamilia: Nepetoideae
Tribus: Elsholtzieae
Genus: Collinsonia
Species: Collinsonia verticillata
Name

Collinsonia verticillata Baldwin ex Elliott, Sketch Bot. S.C. & Ga. 1: 36. 1817.
Synonyms

Homotypic

Micheliella verticillata (Elliott) Briq., in Engl. & Prantl, Nat. Pflanzenf. 4(3a): 325. 1897.

Heterotypic

Collinsonia verticillata var. purpurascens Baldwin ex Elliott, Sketch Bot. S.C. & Ga. 1: 37. 1817.

References

A Sketch of the Botany of South-Carolina and Georgia, A 1:36. 1816
USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. [1]
Peirson, J.A., Cantino, P.D. & Ballard, H.E. 2006. A Taxonomic Revision of Collinsonia (Lamiaceae) Based on Phenetic Analyses of Morphological Variation. Systematic Botany 31(2): 398–409. DOI: 10.1600/036364406777585838 JSTOR ResearchGate Reference page.

Collinsonia verticillata is a species of flowering plant in the mint family known by the common names stoneroot, early stoneroot, whorled stoneroot, and whorled horse-balm. It is native to the United States, where it occurs in the southeastern states, especially the southern Appalachian Mountains, its distribution extending north to Ohio.[2]

This rhizomatous herb has two to three pairs of leaves and an unbranched inflorescence bearing white, pink, or lavender flowers, each with four stamens.[2]

The plant grows in rich soils in mountain forests. Besides this, very little is known about this species.[2]
References

Collinsonia verticillata NatureServe
Collinsonia verticillata. Archived 2011-10-26 at the Wayback Machine Center for Plant Conservation.