Elsholtzia Willd.
Elsholtzia is a genus of about 40 species from the temperate areas of the Old World (predominantly in Asia) (Mabberley 2008). Nearly all occur in China (Li & Hedge 1994). Few species are cultivated as ornamentals or for medicinal purposes and one, Elsholtzia ciliata, has some weedy tendencies and sometimes occurs as an alien outside its native distribution range.
Elsholtzia belongs to a distinct tribe within Lamiaceae (Elsholtziae) (Drew & Sytsma 2012).
Literature:
Bongcheewin B., Chantaranotha P. & Paton A. (2015) Elsholtzia (Lamiaceae) in Thailand. Blumea 59(3): 209-214. [available online at: http://www.repository.naturalis.nl/document/613483]
Drew B.T. & Sytsma K.J. (2012) Phylogenetics, biogeography, and staminal evolution in the tribe Mentheae (Lamiaceae). Am. J. Bot. 99(5): 933-953. [available online at: http://www.amjbot.org/content/99/5/933.long?cited-by=yes&legid=amjbot;99/5/933&related-urls=yes&legid=amjbot;99/5/933]
Jamzad Z., Chase M.W., Ingrouille M., Simmonds M.S.J. & Jalili A. (2003) Phylogenetic relationships in Nepeta L. (Lamiaceae) and related genera based on ITS sequence data. Taxon 52: 21-32.
Jeon Y.-C. & Hong S.-P. (2006) A Systematic Study of Elsholtzia Willd. (Lamiaceae) in Korea (in Korean). Korean J. Pl. Taxon. 36: 309-333.
Lee Y.N. (2000) The genus Elsholtzia in Korea (in Korean). Kor. Plant Res. 1: 48-54.
Lee C.-S., Hwang K.-A., Kim J.-O., Suh H.-M., Lee N.-S. (2011) Taxonomic status of three taxa of Elsholtzia (E. hallasanensis, E. springia, and E. splendens var. fasciflora) (Lamiaceae) based on molecular data. Korean J. Pl. Taxon. 41(3): 259-266.
Li H.-W. & Hedge I.C. (1994) Elsholtzia. In: Wu Z.Y. & Raven P.H. (eds.), Flora of China, vol. 17. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis: 248-257. [available online at: http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=111493]
Mabberley D.J. (2008) Mabberley’s plant-book (3th ed.). Cambridge University Press, Cambridge: XVIII + 1021 p.
Paton A.J., Springate D., Suddee S., Otieno D., Grayer R.J., Harley M.M., Willis F., Simmonds M.S.J., Powell M.P. & Savolainen V. (2004) Phylogeny and evolution of basils and allies (Ocimeae, Labiatae) based on three plastid DNA regions. Molecular Phylogenetics and Evolution 31(1): 277-299.
Press J.R. (1982) Taxonomic studies in the Labiatae tribe Pogostemoneae. Bull. Br. Mus. Nat. Hist. (Bot.) 10(1): 1-89.
Volkova E.V. (1977) Elsholtzia. In: Shishkin B.K. (ed.), Flora of the U.S.S.R., vol. XXI. Academy of Sciences of the USSR: 455-456.
Whiteley A.C. (2000) Elsholtzia. In: Cullen J. & al. (eds.), The European Garden Flora, vol. 6. Cambridge University Press, Cambridge: 227-228.