The bilaterally-symmetrical, purple or blue flowers of the heal-all are small and have a long, fused calyx that measures approximately 1.5 cm. in length. The corolla of each bloom opens into two, white-edged lips: a shallow-notched, two-lobed upper lip, and a larger deeply-notched, three-lobed, lower lip. The upper lip is arched to form a hood and the lobes of the lower lip are palmately arranged with the large, central lobe fringed and arched to form a cup. The bracts of this wildflower are leaf-like and are sparsely covered in small, white bristles. The flowers are densely arranged in elongated clusters and are positioned atop the terminal shoot of the stem.
The leaves of the heal-all are small, measuring 2.5-7.5 cm. in length. They are slender and vary in shape: ranging from lanceolate to ovate. They are sometimes obscurely toothed. The leaves are several and are densely arranged and layered below and throughout the flower cluster.
Heal-all grows best in fields and along roadsides. It is also a popular garden accent.
Other names attributed to the heal-all include the self-heal.
The heal-all is a medicinal plant and can be used as a remedy for several throat ailments.