Sonoran Desert habitat type: Valleys

Sometimes also called creosote flats or "Deserts" in some places, this habitat occupies the low, flat areas between mountain ranges. These can vary in width from a few miles to 50 or miles. The soil in valleys can be silty or sandy or both and is relatively deep. The lack of topographic complexity plus the low temperatures (sometimes dropping into the teens) often experienced during winter months are probably responsible for an extremely low perennial plant species diversity. During much of the year some valleys may present an aspect of a flat plain covered mostly by evenly spaced creosote bushes interrupted occasionally by washes occupied by various desert trees. During wet periods, however, the desert floor comes alive with a bewildering array of mostly annual flowering plants.

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Some species that could be found in Valleys.

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