Britt Marie Christoffersson created variations on garter stitch, using double pointed needles to enable knitters to slide the work back to the beginning of a row, instead of always turning the work to the other side before knitting a new row.
That’s what’s going on in these two samples. They both have garter ridges separated by one row of plain knitting, plus a little or a lot of garter stranding.
This is straight-up garter stitch, sometimes turned, sometimes slid back to the beginning of the row to start a new row. Slipped stitches form some of the color patterning.
The orange bands of this sample are knitted welts, with garter ridges above and below, and a row of elongated stitches in teal. It will always remind me of listening to Alan Bradley’s Flavia de Luce novel #7, As Chimney Sweepers Come to Dust.