Broken Rib stitch

Does anyone know what a Broken Rib stitch is? Please let me know. Thanks! :??

http://www.knittingonthenet.com/stitches/blbrokenrib.htm

what is the purpose of broken rib stitch? Does it have more stretch or is it a visual thing.

Could be both.

sue

I seem to remember reading somewhere that it makes a fairly flat, non-stretchy fabric that looks like ribbing.

Thanks, that helps a lot