Abstract
A second population of Cabomba caroliniana Gray (Cabombaceae) in Belgium with options for its eradication
Highlights
Carolina fanwort Cabomba caroliniana Gray (Cabombaceae) is a fully submerged ground-rooted aquatic plant from slow flowing and stagnant freshwater in temperate and subtropical South America
Cabomba caroliniana is widespread in the Netherlands, where it has been recorded in 65 1 × 1 km squares since 1986 and has expanded very rapidly since 2006 (Matthews et al 2013a): it already causes substantial problems in a few places, invoking considerable management costs
Cabomba caroliniana was found in the village centre of Sint-Pauwels in May 2013
Summary
Carolina fanwort Cabomba caroliniana Gray (Cabombaceae) is a fully submerged ground-rooted aquatic plant from slow flowing and stagnant freshwater in temperate and subtropical South America. It is commonly used as a freshwater aquarium ornamental plant throughout the world. Stems arise from fragile rhizomes and may grow to several meters in length allowing the plant to reach to the surface from a considerable depth. In Belgium, the species is currently listed as absent with a medium ecological impact (Vanderhoeven et al 2015). The species is traded widely and release from aquaria, or use as a pond plant, are important pathways of introduction into the natural environment (EPPO 2007). Cabomba caroliniana is widespread in the Netherlands, where it has been recorded in 65 1 × 1 km squares since 1986 and has expanded very rapidly since 2006 (Matthews et al 2013a): it already causes substantial problems in a few places, invoking considerable management costs (van Valkenburg et al 2011; van Valkenburg and Rotteveel 2010)
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