_Bouteloua oligostachya_ (buffalo, grama, or mesquite grass).--This remarkable grass formed the _pièce de résistance_ of the bison's bill of fare in the days when he flourished, and it now comes to us daily in the form of beef produced of primest quality and in greatest quantity on what was until recently the great buffalo range. This grass is the most abundant and widely distributed species to be found in the great pasture region between the eastern slope of the Rocky Mountains and the nineteenth degree of west longitude. It is the principal grass of the plains from Texas to the British Possessions, and even in the latter territory it is quite conspicuous. To any one but a botanist its first acquaintance means a surprise. Its name and fame lead the unacquainted to expect a grass which is tall, rank, and full of "fodder," like the "blue joint" (_Andropogon provincialis_). The grama grass is very short, the leaves being usually not more than 2 or 3 inches in length and crowded together at the base of the stems. The flower stalk is about a foot in height, but on grazed lands are eaten off and but seldom seen. The leaves are narrow and inclined to curl, and lie close to the ground. Instead of developing a continuous growth, this grass grows in small, irregular patches, usually about the size of a man's hand, with narrow strips of perfectly bare ground between them. The grass curls closely upon the ground, in a woolly carpet or cushion, greatly resembling a layer of Florida moss. Even in spring-time it never shows more color than a tint of palest green, and the landscape which is dependent upon this grass for color is never more than "a gray and melancholy waste." Unlike the soft, juicy, and succulent grasses of the well-watered portions of the United States, the tiny leaves of the grama grass are hard, stiff, and dry. I have often noticed that in grazing neither cattle nor horses are able to bite off the blades, but instead each leaf is pulled out of the tuft, seemingly by its root. Notwithstanding its dry and uninviting appearance, this grass is highly nutritious, and its fat-producing qualities are unexcelled. The heat of summer dries it up effectually without destroying its nutritive elements, and it becomes for the remainder of the year excellent hay, cured on its own roots. It affords good grazing all the year round, save in winter, when it is covered with snow, and even then, if the snow is not too deep, the buffaloes, cattle, and horses paw down through it to reach the grass, or else repair to wind-swept ridges and hill-tops, where the snow has been blown off and left the grass partly exposed. Stock prefer it to all the other grasses of the plains.