I have written this for educational purposes. If in doubt don’t, make certain you know your plants. This is not medical advice and should not be taken as such.
There are many varieties of Mullein which is the Verbascum family. This is Verbascum Thapsus. It is the only one I have eaten. It is very fuzzy and taste like cabbage. It has many health benefits from reducing inflammation to helping with asthma. It is great at fighting infections.
This site is the best for learning to identify plants. It also has a lot of very good information on how to use the plants.