The Kansas Flag features the State Seal on a field of blue. Above the seal is the state crest; a sunflower resting on a twisted blue and gold bar that represents the Louisiana Purchase. Beneath the state seal is the word KANSAS in yellow capital letters.
The rising sun represents the east; the river and steamboat are symbols of commerce; the cabin, settler and plow horses represent agriculture as the base for the future prosperity of the state.
In the distance oxen draw a wagon train west, and a herd of buffalo is pursued by two native Americans on horseback (the American buffalo was adopted as the official state animal of Kansas in 1955); herds of buffalo numbering in the millions once roamed Kansas (correct name is "American bison").
info from statesymbolsusa.org