This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Rootstock horizontal, thick; juice red. Leaves basal, palmately veined and lobed, cordate or reniform. Scape 1-flowered (rarely 2). Flower white. Sepals 2, fugacious. Petals 8-16, oblong-spatulate, arranged in 2 or 3 rows. Stamens 00. Stigma grooved. Placentae 2. Capsule oblong or fusiform, dehiscent to the base, the valves persistent. Seeds smooth, crested. [Name from the red color of the juice.]
A monotypic genus of eastern North America.
Sanguinaria canadensis L. Sp. Pl. 505. 1753.
Glabrous, glaucous, especially when young. Root-stock 1/2'-1' thick, several inches long, densely clothed with thick fibrous roots; petioles 6'-14' long; leaves 6'-12' broad, 4'-7' long, palmately 5-9-lobed, the lobes repand, or cleft at the apex; flowering scape at length overtopped by the leaves; flower \'-\\' broad; petals early deciduous; capsule narrow, 1-celled, 2-valved, 1' long.
In rich woods, Nova Scotia to Manitoba and Nebraska, south to Florida, Alabama and Arkansas. Ascends to 2500 ft. in Virginia. Also called red puccoon and red Indian-paint. Turmeric. Redroot. Corn-root. Pauson. Sweet-slumber. White puccoon. Snake-bite. Flower sometimes pinkish. The scape rarely bears 2 or 3 flowers and bracts. April-May. The species consists of several races, differing in the leaf-lobing and in size and form of the capsule.