(A.Gray) Greene ex A.Gray
Plagiobothrys arizonicus is a species of flowering plant in the borage family known by the common name Arizona popcornflower. It is native to the southwestern United States and northern Mexico, where it is a common wildflower in many types of mountain, desert, and woodland habitat. It is an annual herb with a spreading or erect stem 10 to 40 centimeters in length. The leaves are located in a basal rosette about the stem, with smaller ones along the length of the stem. The plant is coated in long, rough, sharp hairs. The herbage leaks a staining purple juice when crushed. The inflorescence is a series of regular bracts and tiny flowers, each five-lobed white corolla less than 3 millimeters wide. The paired nutlets are arch-shaped and not prickly.
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