This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol3", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Brachystemon muticum Michx. Fl. Bor. Am. 2: 6. pl. 32.
Stem stiff, puberulent, or glabrous below, 1°-2 1/2° high. Leaves short-petioled or sessile, strongly veined, ovate or ovate-lanceolate, firm, acute at the apex, rounded or sometimes subcordate at the base, sharply serrate or serrulate, 1 1/2'- 3' long, 1/2'-1 1/2' wide, the lower mostly glabrous, the uppermost white-canescent on both sides, much smaller; flower-clusters capitate, dense, terminal, corymbose, often also in the upper axils, pubescent or canescent, 4"-6" broad; bracts appressed, lanceolate-subulate or the outer broader; calyx pubescent, its teeth nearly equal, triangular-ovate or triangular-lanceolate, not much longer than wide, about one-fifth as long as the tube; corolla-tube exceeding the calyx.
In sandy soil, Maine to Virginia and Florida, west to Pennsylvania and Missouri. Calamint. July-Sept.
Pycnanthemum montanum Michx. Fl. Bor. Am. 2: 8. 1803. Monardella montana Benth. Lab. Gen. & Sp. 331. 1834. Koellia montana Kuntze, Rev. Gen. Pl. 520. 1891.
Stem slender, glabrous or nearly so throughout, 2°-3° high. Leaves distinctly petioled, membranous, glabrous, ovate-lanceolate or the upper lanceolate, long-acuminate at the apex, usually narrowed at the base, sharply serrate, 2'-5' long, 1/2'-2' wide, none of them canescent; flower-clusters rather dense, terminal and in the upper axils, 1/2'-1' broad; bracts appressed, lanceolate or linear-lanceolate, acuminate, not exceeding the fully developed clusters, bearded more or less with long hairs; calyx tubular, glabrous or puberulent, or villous above, its teeth triangular-subulate, equal, one-fifth to one-fourth as long as the tube; corolla-tube longer than the calyx.
In woods, mountains of southern Virginia to Georgia, Tennessee and Alabama. July-Sept.