Long and short blanket stitch
Long and short blanket stitch consists of a row of loops each anchored by the following stitch to form an L-shape. It is stitched in a similar way to blanket stitch, the only difference is the assortment of stitch lengths. As the name suggests, it can be used to edge blankets, but it can also be worked as a surface stitch.
For more background, see the entry for blanket stitch.
Bring the needle and thread up on the baseline and take the needle down a few millimetres along and in from the line, leaving a loop on the surface.
Tighten the loop to create a reverse L-shaped stitch on the surface and then pull the thread through.
Continue to work along the the baseline, varying the length of the vertical stitches.
The length of the vertical stitches can be alternated to produce a long and short design
Structure of stitch
Mary Thomas, Mary Thomas’s Dictionary of Embroidery Stitches (1934) , p.10–11