Easton's Bible Dictionary: M. G. Easton, M.A., D.D.
A plain, a level tract extending from the Mediterranean to the hill country to the west of Jerusalem, about 30 miles long and from 8 to 15 miles broad, celebrated for its beauty and fertility (1 Chr. 27:29; Isa. 33:9, 35:2, 65:10). The "rose of Sharon" is celebrated (Song 2:1). It is called Lasharon (the article la being here a part of the word) in Josh. 12:18.