 Mexican palmettos ("Sabal mexicana") and Montezuma cypresses ("Taxodium mucronatum") grow in riparian zones, such as along the Rio Grande.Mammals of the Tamaulipan mezquital include the Mexican prairie dog ("Cynomys mexicanus"), ocelot ("Leopardus pardalis"), Gulf Coast jaguarundi ("Puma yagouaroundi cacomitli") southern plains woodrat ("Neotoma micropus"), and Mexican spiny pocket mouse ("Liomys irroratus").Mexican black bears ("Ursus americanus eremicus") and cougars inhabit the Sierra de Picachos.