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The flora of Uruguay consists of 2,500 species distributed among 150 native and foreign biological families. Approximately 80% of Uruguay is prairie, with grasses predominating. Uruguay is primarily a grass-growing land, with vegetation that is essentially a continuation of the Argentine Pampas. Forest areas are relatively small. Trees grow in bunches.
Uruguay contains many herbs, ferns, and flowers.
Natural forests in Uruguay mainly grow near rivers in the countryside.
The native forests are composed of more than 500 native species, including palms. The most abundant are "sauce criollo" (Salix humboldtiana), "sarandí colorado" (Cephalanthus glabratus), "sarandí blanco" (Phyllanthus sellowianus) and "mataojos" (Pouteria salicifolia).
The natural prairie in Uruguay constitutes about 14,000,000 acres (5,700,000 ha) (80% of the country) and contains some 2000 species including 400 grass species. The prairie includes Canelones, Colonia, San Jose, Flores, Florida, Lavalleja and Soriano.
In the valleys, bush lands dominated by shrubs instead of trees or grasses predominate. Common native bushes include (Scutia buxifolia), "Arrayán" (Blepharocalyx salicifolius), "Chal-Chal" (Allophyllus edulis), and "Guayabo Colorado" (Eugenia cisplatensis).