Common mullein is just that. Common. You’ve seen this everywhere from old fields to vacant lots. It is an introduced plant, originally from Europe, and can sometimes spread heavily in disturbed, weedy areas.
This familiar plant starts with a basal rosette of soft fuzzy grayish green leaves. As the season progresses by midsummer a flower spike begins to grow. The spike itself can easily reach 5 or 6 feet and is covered with smallish rather plain looking yellow flowers. The botanical name for this is Verbascum thapsus.
My father has a running joke that this plant is actually grown as sheep herder’s toilet paper. Of course my children find great delight in making the same joke. In reality, it would actually work quite well for that.