Keywords: Salix prolixa range map 2.png en Natural distribution map for Salix prolixa Mackenzie willow The more specific bright green ranges are from Little 1976 and the more general lighter gray-green regions are from Argus 2007 1976 http //esp cr usgs gov/data/little/ USGS Geosciences and Environmental Change Science Center Digital Representations of Tree Species Range Maps from Elbert L Little Jr 1976 Atlas of United States trees Vol 3 minor Western hardwoods U S Department of Agriculture Miscellaneous Publication 1314 13 p 290 maps with added data from George W Argus 2007 Salix Salicaceae Distribution Maps and a Synopsis of Their Classification in North America North of Mexico Harvard Papers in Botany 12 2 335-368 Elbert L Little Jr of the U S Department of Agriculture Forest Service PD-USGov Salix prolixa range maps Uploaded with UploadWizard |