Grasses are found in almost all land areas, plus shallow aquatic habitats. Grasses are used extensively as fodder for livestock. See the GRIN Database produced by USDA for details.
New shoots can grow from nodes on stolons or rhizomes.
Agriculturally, the mature inflorescence with seeds is referred to as a seed head. The two stigmas are large and feathery, easily catch pollen. The dry grain can easily withstand dry conditions over a hot desert summer, or cold winter. It is composed of large cells, mostly inactive, filled with starch grains. This is the part that supplies sugar to the germinating seed for energy and for synthesis of all cell components.