SL14 was originally selected in Kenya the late 1930s at the Scott Agricultural Laboratories (for more on Scott Labs, see SL28). Individual tree selections made at the Scott Laboratories in Kenya during the 1935-1939 period were prefixed “SL.” SL14 was selected in 1936 from a single tree labeled Drought Resistant II (D.R. II), and drought tolerance is a noted characteristic of SL14. Historical records documenting the origin of D.R. II were lost, but the seedlings were established at Kabete in 1933, and then widely distributed in areas east of the Rift Valley in Kenya.
Recent genetic tests have confirmed that SL14 is related to the Typica genetic group. It is economically important in both Kenya and Uganda.