An edible plant stem is part of a plant that you can eat. It's like the stick of a vegetable that holds up the leaves and flowers. Some examples include celery, asparagus, and broccoli. These stems are safe to consume and can be cooked or eaten raw. They are often a good source of fiber and nutrients. However, not all plant stems are edible, so it's important to know which ones are safe to eat. It's also important to wash them thoroughly before eating to remove any dirt or bacteria. So, just remember that an edible plant stem is something you can eat that comes from certain vegetables and plants!