Kash flowers, in the region, in the wild, while localizing mainly in open environments, occupy almost all types of habitats, from forests to humid, from the sand dunes to the ruderal environments. They go at all latitudes, with considerable altitude excursion. Plants are perfectly adapted to arid climates, although there are other species mesophilic and even water. Considerable importance in the context of the coating plant of the earth: they are very dense vegetation formations which extended to give a particular physiognomy as grasslands, savannas, steppes.
The dominant biomes of the savannas, grasslands and steppes, and whole groups of animals eg. ungulates evolved simultaneously. Of particular importance in the history and in the human economy. The cultivation of cereals is the basis for the development of the first civilized societies both in the Old and New World.
The flower has a central axis, represented by the harem , pendent, consisting of carpels that delimit with a single egg, a stylus and feathery stigmas. At the base of the ovary are inserted stamens, almost always three in number, each consisting of a filament and an anther pendula. Sometimes the flowers are unisexual or sterile for lack of pistil abortion of the sexual organs.
The ovary and the stamens are wrapped with the value of fertile bracts, of which the bottom takes the name of the lemma , and the upper, smaller and generally enclosed by the previous, is called palea . The lemma may lodge in the middle, an angle bottom from which it can depart sometimes artist are in place, there is a sting, or occurs, ie with no sting. In the flower you can see the remains of the perianth consisting of lodicule, membranous consistency.
The flowers are always collected in inflorescences called spikelets, distinctive of the family. The spikelet, which can be uniflora or, more frequently, pluriflora, is provided with an axis bearing at the base of the glumes, opposite, with the meaning of bracts sterile. The glumes are generally smaller of glumette and are divided into upper and lower, generally of a different magnitude. The glumes are keeled, and more rarely of glumette, bring spikes and awns, consisting of threadlike extensions.
The flowers are always collected in inflorescence called spikelets, distinctive of the family, and gathered themselves in inflorescences.