paloverde: a thorny shrub of the genus Cercidium that grows in dry parts of the southwestern United States and adjacent Mexico; has smooth light green bark and racemes of yellow flowers and small leaves
shrub: a low woody perennial plant usually having several major stems
shock: (pathology) bodily collapse or near collapse caused by inadequate oxygen delivery to the cells; characterized by reduced cardiac output and rapid heartbeat and circulatory insufficiency and pallor