March word - Grass.
Spotted when I went to physiotherapy for my knee last week. I also had some acupuncture which has given me more movement in the joint.
@nataliemac I have had a problem with it for a few years the muscle in my thigh has tightened up and moved my kneecap over the physio is helping to re-stretch the muscle and the acupuncture is loosening the knots.