Floyd Alonzo McClure (14 August 1897, Shelby County, Ohio – 15 April 1970, Bethesda, Maryland) was an American botanist and plant collector.
[2] At Canton Christian College in Guangzhou, China, he was an instructor in horticulture from 1919 to 1923, an assistant professor of botany from 1923 to 1927, and curator of the herbarium from 1923 to 1927.
[2] During his first three years there he gained unusual competence in the Cantonese language and led plant collecting trips in southern China and Indo-China.
[4] In 1927 the management of Canton Christian College was transferred from American to Chinese people, and the English name of the institution was changed to "Lingnan University".
McClure visited Central American locations to do research and conduct experiments on bamboo species suitable for making ski poles.
He created a large collection of bamboo species at the Barbour Lathrop Plant Introduction Garden near Savannah, Georgia.
He offered a significant step forward in the taxonomic conquest of the bamboos of the Americas (McClure 1973) based on this philosophy of synthesizing all available knowledge.