Wheatear Stitch

Worked along a vertical line, top to bottom. The two diagonal lines are stitched first as an anchor for the loop.

A-Z of Embroidery Stitches, p 134
Elegant Stitches, p 66 [Wheat Ear Stitch]
Mary Thomas's Dictionary of Embroidery Stitches, p 209-210 [Wheat-ear Stitch]