Smooth pricklypoppy is characterized by a robust stature with glaucous, or bluish-green, prickly leaves. Its large, solitary, and brightly colored yellow flowers are typically borne atop tall stems, opening under full sun. Adapted to arid conditions, smooth pricklypoppy's deep-rooting system allows it to thrive in poor, well-drained soils, often in disturbed areas hinting at its resilience.