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Crassula helmsii in the Flemish-Dutch 2 Seas Region:an overview
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Management trials and demonstrations for an invasive evergreen shrub in coastal dunes:A RINSE showcase in the Flemish dunes
Attempts to control aquatic Crassula helmsii at Huis ter Heide (Tilburg, The Netherlands), with special reference to dye treatment ; Pogingen tot bestrijding van Crassula hemsii in...