About Harrisia bonplandii (J.Parm. ex Pfeiff.) Britton & Rose
Harrisia bonplandii has scandent, clambering, or sprawling stems that grow leaning and climbing. Stems reach up to 2.5 meters in length, with diameters up to 5 centimeters. They have three to four edges with flat faces, and the edges themselves are sharp and wavy. This species produces a single strong central spine up to 2.5 centimeters long, along with four to five side spines that grow 4 to 5 millimeters long. Flowers are 20 to 25 centimeters in length. The pericarpel and corolla tube are nearly free of wool, but contain large amounts of scurf. The fruits are spherical, red, strongly tuberculate, and edible, with diameters of 4 to 4.5 centimeters. Harrisia bonplandii is distributed in southwestern Brazil, Paraguay, Bolivia, and northern Argentina, where it grows in the Chaco region at elevations between 80 and 900 meters.
