Common Mullein: leaves are light-green and densely woolly.

• A. Common Mullein
• B. Larkspur
• C. Showy Milkweed
• D. St. John's Wort

Answer: (A)

Leaf texture and color are strong clues for identifying this plant. Common mullein has leaves that are light-green and densely woolly because of a thick covering of soft hairs. That woolly, pale appearance is distinctive and helps set it apart from other species.

Larkspur, in contrast, has leaves that are usually finely divided or lobed rather than broad and woolly. Showy milkweed leaves are broad, smooth, and not hairy, with a rich green color. St. John’s wort leaves tend to be small, smooth, and not densely hairy. So the combination of light-green color with a dense woolly coating specifically matches Common mullein.