This stitch has an interesting pattern! I had trouble reading the instructions properly and so I ended up with the wrong number of stitches several times before I reread the pattern and then it made sense. I didn't pick yellow yarn specifically for this pattern, but once I was done I decided this stitch should be called "Beehive" instead. I'm actually very surprised at how straight this square came out!
I used Red Heart Bright Yellow yarn with an I hook.