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Image: Salix nigra range map 1

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Description: Natural distribution map for Salix nigra (black willow)
Title: Salix nigra range map 1
Credit: USGS Geosciences and Environmental Change Science Center: Digital Representations of Tree Species Range Maps from: Elbert L. Little, Jr. (1971), Atlas of United States trees, Vol. 1, conifers and important hardwoods: U.S. Department of Agriculture Miscellaneous Publication 1146, 9 p., 200 maps; and (1976), Atlas of United States trees, Vol. 3, minor Western hardwoods: U.S. Department of Agriculture Miscellaneous Publication 1314, 13 p., 290 maps.
Author: Elbert L. Little, Jr., of the U.S. Department of Agriculture, Forest Service
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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