About Boerhavia coulteri (Hook.fil.) S.Watson
Boerhavia coulteri is a species of flowering plant in the four o'clock family, commonly known as Coulter's spiderling. It is native to the southwestern United States and northern Mexico, where it grows particularly in desert areas. It is an annual herb that produces an erect or creeping stem that reaches a maximum length of around 70 to 80 centimeters. The stems are slightly hairy, and have sticky resin glands toward their bases. Its leaves are lance-shaped to somewhat triangular, with pointed tips, and sometimes have wavy or rippled edges. Leaves grow up to 5 centimeters in maximum length, and most grow from the lower half of the plant. Its sticky inflorescence is a small cluster of tiny white to pale pink flowers, each of which measures less than two millimeters long. Its fruit is an elliptical structure a few millimeters in length that has longitudinal ribs. Fruits are borne in small clusters.
