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..
Glaucous annual or biennial herbs, with alternate lobed or dissected leaves, large yellow-flowers, and saffron-colored sap. Sepals 2. Petals 4. Stamens 00. Placentae 2, rarely 3; stigma sessile, dilated, 2-lobed, the lobes convex. Capsule long-linear, 2-celled, dehiscent to the base. Seeds cancellate, crestless. [Name Greek, from the glaucous foliage.]
About 6 species, of the Old World, mainly of the Mediterranean region, the following typical.
Stout, 2°-3° high, rigid, branching. Leaves thick, ovate or oblong, 3'-8' long, 1'-2' wide, scurfy, the basal and lowest cauline petioled, the upper sessile, clasping, pinnatifid, the divisions toothed, or the upper merely lobed; flowers axillary and terminal, 1'-2' broad; sepals scurfy; capsule narrowly-linear, 6'-12' long, tipped with the persistent stigma In waste places, Rhode Island, southward near the coast to Virginia, and in central New York. Widely diffused as a weed in maritime regions of the Old World. Adventive from Europe. Summer. Bruisewort. Squatmore.