Kitten tails is an erect forb, 20-40cm tall, with a hairy stem. Flowers are small, yellow, borne in a tall, 5-15cm-long spike. Fruits are 4-7mm long and covered with very small, course, stiff hairs. Basal leaves toothed, palmately veined, egg-shaped, 6-12cm long with long petioles. Leaves farther up the stem are alternate, egg-shaped or oblong, 1-2cm long with no petioles.
Flowering plant resembles a small Verbascum thapsus, though it's not likely that the two would be confused. Basal leaves are similar to some Plantago species.