Bloodroot n. (Bot.) A plant (Sanguinaria Canadensis), with a red root and red sap, and bearing a pretty, white flower in early spring; called also puccoon, redroot, bloodwort, tetterwort, turmeric, and Indian paint. It has acrid emetic properties, and the rootstock is used as a stimulant expectorant. See Sanguinaria. Note: In England the name is given to the tormentil, once used as a remedy for dysentery.
... off to the river and off to the hills, To the land of the bloodroot and wild daffodils, With a buttercup blossom to color my chin, And a basket of burs to put ... — The Peter Patter Book of Nursery Rhymes • Leroy F. Jackson