We introduce this plant, accompanied with illustrations, to overcome the confusion that has existed in commercial circles regarding the plant ordinarily sold as scullcap. The official species is the Scutellaria lateriflora, but the larger part of the drug sold upon the market under that name is derived from two other species of Scutellaria. The genus Scutellaria is well characterized by the calyx, which in all the species consists of 2 round lips closed in fruit, the upper lip of which has a helmet-shape appendage, giving to it the appearance of a mask or cap; hence the common name scullcap.
Library · King's American Dispensatory, vol. 2, 1905
SCUTELLARIA (U. S. P.)—SCUTELLARIA. Botanical Source and History
Harvey Wickes Felter and John Uri Lloyd, p. 1739. Transcribed from the page image on September 25, 2026, as printed.