Karl August Otto Hoffmann (25 October 1853 in Beeskow – 11 September 1909)[1] was a German botanist and a high school teacher in Berlin.
[2] Author of Sertum plantarum madagascariensium, the genus Hoffmanniella in the family Asteraceae was named after him by Rudolf Schlechter.
[3] With Georg Carl Wilhelm Vatke, he processed botanical specimens collected by Johann Maria Hildebrandt in Madagascar.
[6] He provided analyses of Asteraceae specimens collected by Auguste Chevalier in Africa and by Per Karl Hjalmar Dusén in Patagonia and Tierra del Fuego.
He made major contributions in Engler and Prantl's Die Natürlichen Pflanzenfamilien involving Asteraceae (806 genera).