Kai Larsen (15 November 1926 in Hillerød – 23 August 2012) was a Danish botanist. Kai Larsen was professor of botany (Emeritus from 1-12-1996) at Århus University, Denmark. He was the Danish editor of Flora Nordica, editor of Flora of Thailand, advisor to Flora of China and executive member of Flora Malesiana. He was a member of the Norwegian Academy of Science and Letters. and the Royal Danish Academy of Sciences and Letters. Research SE Asian flora region, particularly Thailand, Malaysia and Indo-China. Revisions of several families e. g. Caesalpiniaceae, Caryophyllaceae, and Lowiaceae for several of the regional floras. Zingiberaceae for Flora of Thailand and Flora Malesiana. Eponymous species Some plant names are taxonomic patronyms recognizing his contribution to studying Asian flora. Genera Kailarsenia: a fragrant plant from the family Rubiaceae that can be found in Southeast Asia. Larsenaikia: once endemic Australian species of Gardenia in the family Rubiaceae. This name is a taxonomic anagram derived from genus Kailarsenia. The generic name Kaisupeea (Gesneriaceae) honours Kai and Supee Larsen. Species Burmannia larseniana D.X.Zhang & R.M.K.Saunders (Burmanniaceae) Bauhinia larsenii Y.F. Chen & D.X. Zhang, fossil Leguminosae from southern China Caulokaempferia larsenii Suksathan & Triboun Cornukaempferia larsenii Saensouk, Theerakulpisut, & Chantaranothai Curcuma larsenii C. Maknoi & T. Jenjittikul Impatiens larsenii T. Shimizu Kaempferia larsenii Sirirugsa Mouretia larsenii Tange Zingiber larsenii Theilade References 1926 births 20th-century Danish botanists 2012 deaths Botanists active in South Asia Members of the Norwegian Academy of Science and Letters People from Hillerød Municipality Academic staff of Aarhus University