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Common mullein (Verbascum thapsus) is a biennial forb native to Europe and Asia. The first <br />year the plant produces a basal rosette. Basal rosettes can grow to 30 inches in diameter. The <br />leaves are light -green in color and are covered in fine soft hairs. The woolly leaves are alternate <br />and overlapping each other and can grow over a foot long. In spring of the second year the plant <br />bolts an erect stem that grows 2 to 6 feet tall. The flowers of the plant are borne in terminal <br />spikes. These terminal spikes may reach up to 20 inches in length. The flowers are sulfur -yellow <br />in color and have five petals. The flowers range from 3/4 of an inch to 1 1/2 inches in diameter. <br />Numerous two chambered fruits produce 100,000 to 250,000 seeds per plant. Flowering and seed <br />production typical occur from June to August. The plant has a deep taproot along with a fibrous <br />root system. <br />Cresson Project Weed Management Plan 12 <br />