Collinsonia

{{Short description|Genus of flowering plants}} {{Automatic taxobox | image = Collinsonia canadensis flowers.jpg | image_caption = ''Collinsonia canadensis'' | display_parents = 2 | taxon = Collinsonia | authority = Linnaeus | type_species = ''Collinsonia canadensis'' | type_species_authority = Linnaeus | synonyms_ref = <ref name=i/> | synonyms = *''Hypogon'' Raf. *''Diallosteira'' Raf. *''Pleuradenia'' Raf. *''Keiskea'' Miq. *''Micheliella'' Briq. }}

'''''Collinsonia''''' is a genus of flowering plants in the family Lamiaceae. It is native to East Asia and eastern North America.<ref name=i>[http://apps.kew.org/wcsp/namedetail.do?name_id=46221 Kew World Checklist of Selected Plant Families]</ref><ref>[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=117022 Flora of China Vol. 17 Page 257 <big>香简草属</big> xiang jian cao shu ''Keiskea'' Miquel, Ann. Mus. Bot. Lugduno-Batavi. 2: 105. 1865. ]</ref><ref>[http://bonap.net/NAPA/TaxonMaps/Genus/County/Collinsonia Biota of North America Program, 2013 county distribution maps]</ref><ref name="weakley">Alan S. Weakley. "Collinsonia" page 745. In: ''Flora of the Carolinas, Virginia, and Georgia'' (title varying with update). (see External links below).</ref> It was named for the English botanist Peter Collinson (1694–1768) by Carl Linnaeus in ''Species Plantarum'' in 1753.<ref name="quattrocchiI">Umberto Quattrocchi. 2000. ''CRC World Dictionary of Plant Names'' volume I. CRC Press: Boca Raton; New York; Washington, DC;, USA. London, UK. {{ISBN|978-0-8493-2675-2}}.</ref> It is in the tribe Elsholtzieae, a small tribe of only 5 genera.<ref name="harley2004">Raymond M. Harley, Sandy Atkins, Andrey L. Budantsev, Philip D. Cantino, Barry J. Conn, Renée J. Grayer, Madeline M. Harley, Rogier P.J. de Kok, Tatyana V. Krestovskaja, Ramón Morales, Alan J. Paton, and P. Olof Ryding. 2004. "Labiatae" pages 167-275. In: Klaus Kubitzki (editor) and Joachim W. Kadereit (volume editor). ''The Families and Genera of Vascular Plants'' volume VII. Springer-Verlag: Berlin; Heidelberg, Germany. {{ISBN|978-3-540-40593-1}}</ref> In order of their number of species, they are ''Elsholtzia'', ''Mosla'', ''Collinsonia'', ''Perilla'', and ''Perillula''.

The circumscription of species in ''Collinsonia'' has been a source of confusion, and many names have been published.<ref name="ipnicollinsonia">''Collinsonia'' At: International Plant Names Index. (see External links below)</ref> Some authors have recognized as many as 10 species. In 2006, the genus was revised with only four species recognized.<ref name="Peirson2006">Jess A. Peirson, Philip D. Cantino, and Harvey E. Ballard Jr. 2006. "A Taxonomic Revision of ''Collinsonia'' (Lamiaceae) Based on Phenetic Analyses of Morphological Variation". ''Systematic Botany'' 31(2):398-409. {{doi|10.1600/036364406777585838}}</ref> The following list of species follows the World Checklist from Kew Gardens in London.

*''Collinsonia anisata'' Sims - Alabama, Mississippi, Florida, Georgia *''Collinsonia australis'' (C.Y.Wu & H.W.Li) Harley - Fujian, Guangdong *''Collinsonia canadensis'' L. - Quebec, Ontario, eastern United States *''Collinsonia elsholtzioides'' (Merr.) Harley - Anhui, Guangdong, Hubei, Hunan, Jiangxi, Zhejiang *''Collinsonia glandulosa'' (C.Y.Wu) Harley - Fujian *''Collinsonia japonica'' (Miq.) Harley - Japan *''Collinsonia macrobracteata'' (Masam.) Harley - Taiwan *''Collinsonia punctata'' Elliott - southeastern United States from Louisiana to North Carolina *''Collinsonia sinensis'' (Diels) Harley - Anhui, Jiangsu, Zhejiang *''Collinsonia szechuanensis'' (C.Y.Wu) Harley - Sichuan, Yunnan *''Collinsonia verticillata'' Baldwin ex Elliott - eastern United States from Ohio and Virginia south to Alabama

== References == {{Commons category}} {{Wikispecies}} {{Reflist}}

Category:Lamiaceae Category:Lamiaceae genera Category:Botanical taxa named by Carl Linnaeus