This stitch is a combination of coral stitch (yet to come) and the knotted chain stitch. Each loop in this stitch is preceded by a knot made using the coral stitch technique.
You need to know at least the knotted chain stitch to be able to do this stitch. I demonstrate from right to left on a single stitch line. Like in the knotted chian stitch, here too, the stitches fall on either side of the stitch line.