The thing I get from it is that you are afraid of growth. Granted your arms are a strange place for plants so maybe you are afraid of growth in a part of your life you aren't ready for yet. Clover is food for honeybees and cows. It is the food of your food and you ripped it out. Could this have been a warning you undermining your own future somehow? Was it four leaf clover? Were you ripping out your personal patch of luck? What is going on in your waking life currently that has you expanding and growing? Since the dream was about your arms, are you expanding your reach in any area of your life that's making you afraid or uncomfortable? Is there something going on now you are reluctant to fully embrace?