About Adenophyllum porophylloides (A.Gray) Strother
Adenophyllum porophylloides (A.Gray) Strother is a species of flowering plant in the Asteraceae family. It goes by the common names San Felipe dogweed and San Felipe dyssodia. This plant is native to the Sonoran and Mojave Deserts. Its range covers the southwestern United States, including Arizona, California, and Nevada, as well as northwestern Mexico, including Sonora, Baja California, and Baja California Sur. It can be found growing in alluvial fans, rocky slopes, open scrub, and woodlands. It is an aromatic desert subshrub that produces multiple branching stems, reaching a maximum height of around 60 centimeters. Its sparse, clawlike leaves are divided into sharply pointed linear lobes, which carry prominent resin glands. The foliage of the plant has an unpleasant scent. The inflorescence grows on a peduncle several centimeters long. The flower head is cylindrical, lined with phyllaries that bear large resin glands. The tip of the flower head blooms with bright yellow to reddish orange disc florets. Short, stubby yellow to reddish ray florets sometimes grow along the rim of the head. Its fruit is an achene about 5 millimeters long, topped with a bristly, scaly pappus.
