Over here they call them brandnetels and this ornery plant is all over the place, mostly along the edges of the fairway where you do not want to be.
You can't help but touching them. If you need to bend down and identify your ball, when taking your practice swing, simply addressing the ball in the midst of the high grass. If you happen to be wearing shorts and inadvertently allow your baby-skinned legs to rub the leaves of this evil green contraption of nature, you'll be sorry.
The stinging sensation is subtle at first and then by the time you reach the green it's burning your skin beyond repair. If you happen to be sweating as well then you might as well forget trying to concentrate for the important putt to save par.
Sitting home enjoying a healthy dinner and reminiscing about a round of golf well done feels good, except for that extreme itchiness and burning sensation on your legs, hands and arms.
Urtica dioica (Latin for I'm burning)