(Trichostema oblongum)
Trichostema oblongum is an annual herb approaching fifty centimeters (20 in) in maximum height. Its aromatic foliage is coated in glandular and nonglandular hairs. The elongated or lance-shaped leaves are 2 to 4 centimeters (0.79 to 1.57 in). The inflorescence is a series of clusters of flowers located at each leaf pair. Each flower has a hairy calyx of pointed sepals and a tubular, lipped purple corolla. The four curved stamens protrude from the lips of the flower.