Panicoideae is one Subfamily of Pulses . The panicóideas have been recognized taxonomically for a long time, due to characteristic his espiguillas. The canes are usually solid, espiguillas are dorsally compressed, they do not present/display raquilla and they are bifloras. The disarticulation of espiguilla to the maturity takes place below glume. The type of physiology of the prevailing photosynthesis is the C4. The starch grains in endosperma are simple. The more typical basic chromosomal numbers are x=5, 9 and 10, although also are species with x=7, 12 and 14. The subfamily is mainly tropical and contains two great tribes, Andropogoneae and Paniceae, along with a number of small groups. Andropogoneae is relatively easy to recognize because his espiguillas usually comes from a even and grouped in a linear inflorescencia. Paniceae is not as homogenous as Andropogoneae. The subfamily understands 206 sorts and 3,245 species. Between the most important sorts is included Panicum (470 species, polifilético), Paspalum (330 species), Andropogon (100 species), Setaria (100 species), Sorghum (20 species), and Zea (4 species). The sorghum and the maize are two cultures of great economic importance and both are included in this subfamily.