What kind of stitch is this on either side of the cable on this shawl? Looks like seed stitch, but I wasn’t sure.
It looks like Moss to me – that’s like a double seed stitch, 2 knits, 2 purls.
The pattern’s on the same page - looks like it calls for plain seed stitch. But I agree that it looks more like moss - maybe just the bulkiness of the yarn?
But I think you could use any stitch you wanted for the ground, just by substituting it into the pattern.