Climbing Skullcap is a tall perennial herbaceous plant, with long climbing 4-angled branches. This climbing plant produces lax spikes of pale yellow or whitish flowers with purple upper lips. The flower spikes are about 8-10 cm long. The flowers are 2-2.5 cm long, the upper lip hooded with margins in-curved. The notched lower lip is broader than long. Ovate-lancelike leaves, 2.5-8 cm long, are coarsely toothed, stalked and sometimes purple on the lower surface. Climbing Skullcap is found in shrubberies in the Himalayas, at altitudes of 1200-2400 m. Flowering: March-May.