White poppy, Texas poppy, prickly poppy, pricklypoppy, and Carolina poppy
Previously known as Argemone alba.
Bluestem prickly poppy is in the Papaveraceae, or poppy, Family.
Blustem prickly poppy is an annual wildflower that grows to a height of 2 to 3 feet.
The leaves are alternate and clasp around the stem. The incised margins are sharply toothed. They are lanceolate to obovate in shape and are very spiny. The foliage has a blueish tint to it.
The flowers appear in the spring, summer and fall. The petals are crinkled, and look like crepe paper, with a bright yellow center.
The seeds are contained within spiny capsules.
Bluestem prickly poppy is found growing in disturbed sites, roadsides and dry areas.
Bluestem prickly poppy is found growing in AL, AR, CT, FL, GA, IA, IL, KY, LA, MA, MD, MI, MO, MS, NC, NY, OH, SC, TN, TX, and WI.
It grows in zones 6 through 9.
In the home landscape it should be planted in an area away from traffic because it is a very spiny plant. It is considered poisonous so keep well away from children, pets and livestock. Although livestock tend to avoid this plant. When the plant, or stems, are cut it exudes a yellow latex sap that causes staining to clothing and gloves.
The flowers are a source of nectar for many insects including bees, beetles, butterflies, flies, and wasps.
The spiny foliage provides a protected area for some insects. It is deer resistant. The seeds are eaten by quail and songbirds that feed on the ground.
Seed tea is emetic, purgative, demulcent. Plant infusion used for jaundice, skin ailments, colds, colic, wounds. Externally, used for headaches. Folk remedy for cancers. itching and scabies. Warning: Contains toxic alkaloids. Seed oil causes glaucoma and edema. 
 Foster, Steven, and James A. Duke. A Field Guide to Medicinal Plants: Eastern and Central North America. Houghton Mifflin, 1998.