In most places the rich, dry soil is occupied by a coarse grass, three or four feet high, growing in large tussocks, and all the year round of a deep green; a few slender herbs and trefoils, with long, twining stems, maintain a frail existence among the tussocks; but the strong grass crowds out most plants, and scarcely a flower relieves its
6 A Naturalist in La Plata.
uniform everlasting verdure. There are patches, sometimes large areas, where it does not grow, and these are carpeted by small creeping herbs of a livelier green, and are gay in spring with flowers, chiefly of the composite and papilionaceous kinds; and verbenas, scarlet, purple, rose, and white. On moist or marshy grounds there are also several lilies, yellow, white, and red, two or three flags, and various other small flowers; but altogether the flora of the pampas is the poorest in species of any fertile district on the globe. On moist clayey ground flourishes the stately pampa grass, Gynerium argenteum, the spears of which often attain a height of eight or nine feet. I have ridden through many leagues of this grass with the feathery spikes high as my head, and often higher. It would be impossible for me to give anything like an adequate idea of the exquisite loveliness, at certain times and seasons, of this queen of grasses, the chief glory of the solitary pampa. Everyone is familiar with it in cultivation; but the garden-plant has a sadly decaying, draggled look at all times, and to my mind, is often positively ugly with its dense withering mass of coarse leaves, drooping on the ground, and bundle of spikes, always of the same dead white or dirty cream-colour. Now colour--the various ethereal tints that give a blush to its cloud-like purity--is one of the chief beauties of this grass on its native soil; and travellers who have galloped across the pampas at a season of the year when the spikes are dead, and white as paper or parchment, have certainly missed its greatest charm. The plant is social, and in some places where
The Desert Pampas, 7
scarcely any other kind exists it covers large areas with a sea of fleecy-white plumes; in late summer, and in autumn, the tints are seen, varying from the most delicate rose, tender and illusive as the blush on the white under-plumage of some gulls, to purple and violaceous. At no time does it look so perfect as in the evening, before and after sunset, when the softened light imparts a mistiness to the crowding plumes, and the traveller cannot help fancying that the tints, which then seem richest, are caught from the level rays of the sun, or reflected from the coloured vapours of the afterglow.
The last occasion on which I saw the pampa grass in its full beauty was at the close of a bright day in March, ending in one of those perfect sunsets seen only in the wilderness, where no lines of house or hedge mar the enchanting disorder of nature, and the earth and sky tints are in harmony. I had been travelling all day with one companion, and for two hours we had ridden through the matchless grass, which spread away for miles on every side, the myriads of white spears, touched with varied colour, blending in the distance and appearing almost like the surface of a cloud. Hearing a swishing sound behind us, we turned sharply round, and saw, not forty yards away in our rear, a party of five mounted Indians, coming swiftly towards us: but at the very moment we saw them their animals came to a dead halt, and at the same instant the five riders leaped up, and stood erect on their horses' backs. Satisfied that they had no intention of attacking us, and were only looking out for strayed horses, we continued watching them for
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