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..
Papaver dubium L. Sp. Pl. 1196. 1753.
Slender, branching, 1°-2° high, hirsute with spreading hairs. Lower leaves petioled, 4'-6' long, the upper smaller, nearly sessile, all deeply pinnately divided; lobes oblong, pinnatifid, cleft or sometimes entire; flowers 2' broad, scarlet, sometimes darker in the center; filaments not dilated; capsule oblong-clavate, glabrous, 8"-10" long, narrowed below; stigmatic rays 6-10.
In waste and cultivated grounds, Massachusetts and Rhode Island to Pennsylvania, Virginia, West Virginia and southward. Also in ballast about the seaports and in Bermuda. Adventive from Europe. Summer. Blind-eyes. Headache. Blaver.
Papaver Argemone L. Sp. Pl. 506. 1753.
Slender, hirsute, or nearly glabrous, 1°-2° high, branching. Leaves all but the upper petioled, lanceolate in outline, pinnately divided, the drvisions pin-natifid and toothed; flowers 1'-2' broad, pale red, often with a darker center; filaments not dilated; capsule oblong, 8"-10" long, narrowed at the base, bristly-hairy.
Papaver nudicaule L. Sp. Pl. 507. 1753.
Perennial, more or less hirsute. Leaves all basal, pinnately lobed or cleft, the lobes linear-oblong, acute or obtuse; scape erect, slender, 2'-12' tall, much exceeding the leaves; flower solitary, 1'-3' broad, yellow or red; filaments filiform; capsule narrowly obovoid, 5"-8" high, about 4" in greatest diameter, densely beset with erect bristly hairs.
Greenland and Labrador to Alaska and British Columbia. Also in northern Europe and Asia. Included in our first edition, in P. alpinum L. Summer.