Hydrastis canadensis Linnaeus, Systema Naturae, ed. 10, 2: 1088. 1759.

["Habitat in Canadae aquis."] Sp. Pl., ed. 2, 1: 784. 1762. RCN: 4112.

Lectotype (Reveal in Phytologia 71: 464. 1991): Bartram, Herb. Linn. No. 720.2 (LINN) .

Generitype of Hydrastis Linnaeus.

Current name: Hydrastis canadensis V. ( Ranunculaceae).

Note: Jarvis & al. (in Regnum Veg. 127: 55. 1993) wrongly reported Reveal to have chosen sheet 720.1 (LINN) as the type. In fact, Reveal had chosen 720.2 (LINN).