Photo: Hadley Paul Garland Creosote = a shrub native to arid parts of Mexico and the western USA. When steeped in boiling water, the leaves yield an antiseptic lotion. Joshua Tree National Park: Perhaps no other desert plant is more conspicuous than the creosote (Larrea tridentata) which grows in the Chihuahuan, Sonoran, and Mojave deserts … Continue reading Creosote