Göte Wilhelm Turesson (6 April 1892 – 30 December 1970) was a Swedish evolutionary botanist who made significant contributions to ecological genetics, and coined the terms ecotype and agamospecies.

This work stood in sharp contrast to most researchers at the time, who believed that the differentiation of plant populations was due to phenotypic plasticity.

Further, Turesson came to the conclusion that differentiation of plant populations was largely driven by natural selection.

At the main campus of the Swedish University of Agricultural Sciences in Ultuna, one may still see a long row of birch trees of provenances ranging from Scania to Lappland, planted by Turesson.

Thus, Turesson continues to remind SLU students that phenology has a genetic basis and that local adaption may be revealed in common garden experiments.