Cereus pachyrrhizus (sometimes spelled pachyrhizus) is a species of plant in the genus Cereus.
Description Cereus pachyrrhizus is a tree-like cactus, growing up to tall with large, thickened, tuberous roots. The stems are cylindrical, yellowish-green to yellowish-brown in color, around wide and usually have 6 ribs. The stem also have areoles, each bearing 10-13 spines. The flowers are white and showy.The fruits are ellipsoid in shape and measure up to 5 cm in length.
Distribution Cereus pachyrrhizus is native to the seasonally dry deserts of Paraguay. Taxonomy The first description was published in 1903 by Karl Moritz Schumann who named it after its thick swollen roots. References