Great minds think alike (LOL!) ... Moss/Granite was my first thought, but it still looks like ‘rows’. I came across this one ....looks less like rows & more like the picture.
Wattle Stitch:
https://www.mamainastitch.com/how-to-crochet-the-wattle-stitch/
If I knew the directions for the stitch, that would help, but if the picture is the only clue, ‘Wattle Stitch’ would be my guess.
I agree. Wattle Stitch it is!
Now, I’m going to go give it a try - or at least watch the video demo! :)