Stitch a cluster of five straight stitches of differing lengths each going into the same hole at the base, each fan should be symmetrical on each side with the centre stitch being the tallest over 7 threads of the fabric.
Structure of stitch
This pattern is ideal for grassy textures as well as fur or feathers.
Identifying Fan (pattern)
A group of five single stitches radiating from one hole in the fabric into a fan shape. This creates a pattern of continuous rows of fan shapes, each connecting to one another.
Becky Hogg, RSN Essential Stitch Guides: Blackwork (2010) , p.37
Various Authors, The Royal School of Needlework Book of Embroidery (2018) , p.141