Stems. - Low. Leaves. - Opposite, oblong. Flowers. - Bluish-purple, in a spike or head. Calyx. - Two-lipped, upper lip with three short teeth, the lower two-cleft Corolla. - Two-lipped, the upper lip arched, entire, the lower spreading, three-cleft. Stamens. - Four. Pistil. - One, two-lobed at the apex.
Throughout the length and breadth of the country, from June until September, the short, close spikes of the self-heal can be found along the roadsides. The botanical name, Brunella, is a corruption from Prunella, which is taken from the German for quinsy, for which this plant was considered a certain cure. It was also used in England as an application to the wounds received by rustic laborers, as its common names, carpenter's herb, hook-heal, and sicklewort, imply. That the French had a similar practice is proved by an old proverb of theirs to the effect that "No one wants a surgeon who keeps Prunelle"
Plate XCIII. Self-Heal. - B. vulgaris