(November 2016) Pogona is a genus of reptiles containing eight lizard species, which are often known by the common name bearded dragons. The name bearded dragon refers to the beard of the lizard, the underside of the throat which turns black if they are stressed or see a potential rival.
Desert willow (Chilopsis linearis), with its delicate, pale green leaves and large, fragrant flowers, loses its leaves in winter. A North American native, desert willow grows wild in the southwestern United States and Mexico. It commonly grows in desert areas that flood seasonally, like stream beds and low canyon areas.
In hot weather, the leaves on one or more branches turn dull green to yellow, wilt, and wither, often from the base upward. Annuals and young trees are often stunted and usually die; perennials may die branch by branch over a period of from several weeks to years or apparently recover.