Agronomy and Horticulture Department


Date of this Version



Published in Ecology, Vol. 8, No. 1 (Jan., 1927), pp. 1-17. Copyright 1927 Ecological Society of America. Used by permission.


It is of more than passing interest that the cereal crops, namely: corn, spring and winter wheat, oats, barley, sorghum, and millet, have their center of greatest production in that portion of the United States originally covered by grassland. In fact, some are grown almost entirely in the grassland region, and other crops, as alfalfa and flax, which are similar in growth habits to wild legumes, wild flaxes, etc., growing among the grasses, also have their greatest acreage in grassland. Likewise, the largest areas of fruit production, including such tree fruits as apples, peaches, pears, and bush fruits as blackberries, currants, and raspberries, are in those portions of the United States formerly occupied by native species of similar habits, i.e., forest trees and shrubs.