pinkroot

Spigelia marilandica (Indian pink or Woodland pinkroot) is a perennial wildflower in the Loganiaceae family that is used as ornamental plant.

Spigelia gentianoides is a rare species of flowering plant in the Loganiaceae known by the common names gentian pinkroot and purpleflower pinkroot.

As a doctor, he used his scientific knowledge in the smallpox epidemic in Charleston in 1760 when he inoculated over 2000 people, and he published an essay on the medicinal properties of the pinkroot (Spigelia marilandica).