| prickly poppy | (n) any plant of the genus Argemone having large white or yellow flowers and prickly leaves and stems and pods; chiefly of tropical America, Syn. argemone, white thistle, devil's fig |
| quail bush | (n) spiny shrub with silvery-scurfy foliage of alkaline plains of southwestern United States and Mexico, Syn. white thistle, Atriplex lentiformis, quail brush |