Michael Joseph François Scheidweiler (1799 - September 1861), was a German-born Professor of Botany and taxonomist, whose main area of interest was the Cactaceae. From a collection by Henri Guillaume Galeotti, he first described Ariocarpus retusus, type species of the genus in 1838 in Brussels. [1]
This botanist is denoted by the author abbreviation Scheidw. when citing a botanical name.[2]