The Botany of Iceland is a five-volume classic scientific work on flora and vegetation of Iceland. It includes fungi, lichen, algae, bryophytes, and vascular plants.
It was published 1912 to 1949 and funded by the Carlsberg Foundation. The project was initiated by Eugenius Warming and Lauritz Kolderup Rosenvinge, who edited the first three volumes, but it was continued after their deaths.