Magnoliidae: Papaverales: The Papaveraceae are herbs or rarely shrubs or trees comprising 25 genera and 200 species that usually have milky or colored sap. The leaves are alternate and lack stipules. The flowers are actinomorphic, showy, and bisexual. The calyx consists of 2 or 3 distinct or rarely completely connate sepals that are usually torn off the receptacle as the bud opens. The corolla comprises 4-12 distinct petals in 1 or 2 whorls. The petals are usually crumpled in bud. The androecium consists of numerous stamens. The gynoecium consists of a single compound pistil with a superior ovary and usually many parietal ovules in a single locule. The two to many carpels equal the number of placentae and stigmas. The fruit is generally capsular and commonly dehisces by way of valves or by pores.
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