The wrapper is the last tobacco leaf to be rolled on the cigar, so it is the one the smoker will see.
Sungrown cigar wrappers come from tobacco plants that are grown directly under the sun without the use of man made tents to give shade as in Shade grown wrappers. As opposed to the Shade grown plants, sun grown tobacco plants grown thicker leaves with thicker veins and darker color. Sungrown wrappers can be appreciated for their rich taste and sweet undertones.

The binder is a full tobacco leaf that is used to roll the cigar, binding the filler tobaccos together. 
Cuban seed tobacco comes from seeds that originated in Cuba but are grown in other countries. The tobacco is used in binders as well as wrappers.