NAS - Nonindigenous Aquatic Species
U.S. Department of Agriculture Forest Service. 2006. Crack Willow Salix fragilis L. USDA Forest Service, Newtown Square, PA. http://www.na.fs.fed.us/fhp/invasive_plants.
Reference Number: 42578 Type: Report Author: U.S. Department of Agriculture Forest Service Date (year): 2006 Report TitleCrack Willow Salix fragilis L. Publisher:USDA Forest Service Publisher Location:Newtown Square, PA Pages: URL: http://www.na.fs.fed.us/fhp/invasive_plants Keywords: Crack Willow, Salix fragilis
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Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/26/2026].
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