Schleinitzia fosbergii is a species of flowering plant in the legume family known by the common name strand tangantangan. It is native to Guam and other islands in the Mariana Islands chain. This plant is a large shrub generally growing up to 2 meters tall, sometimes becoming treelike and reaching 6 meters. The leaves are made up of a few pairs of pinnae, each of which is lined with several pairs of leaflets up to a centimeter long. The inflorescence is a small globular cluster of tiny white five-petaled flowers which may be bisexual or functionally male. The fruit is a hard, flattened, brown or black pod up to 11 centimeters long.