Feather stitch is another line stitch that is very useful especially for greenery and fronds. It can be used to fill up an area quickly.
Bring the needle up and then pick up a bit of fabric on the diagonal, so the end point is centered between the two top points. Loop the thread under the needle and pull through.
Repeat the stitch to one side. It can be either depending on the direction you want your line of stitching to go.
Continue with another stitch on the other side.
Continue back and forth down the line of stitching. This is the basic stitch. You can vary how often you move side to side, either regularly or randomly.