ACACIA CONCINNA (Willd) DC.
Mimosa concinna Willd.
Mimosa rugata Lam.
Acacia rugata Ham.
Acacia philippinarum Benth.
Acacia concinna is found in La Union, Benguet, and Ilocos Sur Provinces in Luzon, in thickets at low and medium altitudes. It also occurs in India to southern China and Malaya.
This is a scandent prickly shrub reaching a height of 4 to 5 meters. The branches are gray and armed with short, sharp prickles. The leaves are pinnately compound, 15 to 15 centimeters long, and with 8 to 10 pairs of pinnae. The rachis has one gland near the base, and one or two near the apex. The leaflets number 20 to 32 pairs on each pinnae, are linear-oblong, being 8 to 10 millimeters in length, and have a pointed tip and subtruncate base. The midrib is oblique. The panicles are terminal, in the upper axils, and ample. The heads are yellow about 1 centimeter in diameter. The pods are straight, somewhat fleshy, flat, 7 to 10 centimeters long, and about 2 centimeters wide.
According to Kirtikar and Basu the soft parts of the dried berries contain 5 percent of saponin. They state that the pod is acid, bitter, and singularly pungent; and that medicinally, it is deobstruent in cases of jaundice and other biliary derangements and is besides, used by the Indians for washing the head.