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Cut-and-Paste Reference:
Robert, H., R. Lafontaine, R.C. Beudels-Jamar, and T. Delsinne. 2013. Risk analysis of the Australian swamp stonecrop Crassula helmsii (Kirk) Cockayne. Royal Belgian Institute of Natural Sciences. https://www.researchgate.net/publication/266617673_Risk_analysis_of_the_Australian_swamp_stonecrop_Crassula_helmsii_Kirk_Cockayne_-_Risk_analysis_report_of_non-native_organisms_in_Belgium_from_the_Royal_Belgian_Institute_of_Natural_Sciences_for_the_Fe.
Reference Details:
Reference Number: 29344
Type: Report
Author: Robert, H., R. Lafontaine, R.C. Beudels-Jamar, and T. Delsinne
Date (year): 2013
Report TitleRisk analysis of the Australian swamp stonecrop Crassula helmsii (Kirk) Cockayne
Publisher:Royal Belgian Institute of Natural Sciences
Publisher Location:
Pages: 37 pp
URL: https://www.researchgate.net/publication/266617673_Risk_analysis_of_the_Australian_swamp_stonecrop_Crassula_helmsii_Kirk_Cockayne_-_Risk_analysis_report_of_non-native_organisms_in_Belgium_from_the_Royal_Belgian_Institute_of_Natural_Sciences_for_the_Fe
Keywords: Crassula helmsii, New Zealand pygmyweed, Australian swamp stonecrop, risk analysis
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Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/13/2026].

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