Mullen is a plant that belongs to the genus Verbascum. It is also known by different names, including velvet plant, woolly mullein, flannel plant, and torch plant. While the term mullen is its most commonly recognized name, these synonyms give insight into the unique features and characteristics of the plant. Velvet plant and woolly mullein both highlight the soft and fuzzy texture of its leaves, while the name torch plant emphasizes the tall and upright nature of its stem. Flannel plant, on the other hand, emphasizes the warmth and comfort the plant may bring to those who use it as an herbal remedy.