This is another member of the Mint family with pairs of opposite leaves and relatively small tubular flowers. It has unusually hairy stems and the dense hairy whorls of flowers are rather conspicuous. These dense whorls of flowers distinguish the genus Blephilia from many other members of the Mint family. The only other member of this genus that occurs in Illinois is Blephilia ciliata (Downy Wood Mint). Downy Wood Mint has leaves that are sessile (or nearly so) and its stems are finely pubescent. Hairy Wood Mint, on the other hand, has leaves with slender petioles and its stems have spreading white hairs that are quite long. Downy Wood Mint prefers habitats that are somewhat sunnier and drier; it is sometimes found in prairies and savannas.