In botany, a neophyte is a plant species which is non-native to a geographical region, and was introduced in recent history. The term is derived from the Greek neo = new and phytos = plant. Archaeophytes are plants that are long-established in an area and are considered to have been first introduced prior to 1492, when Christopher Columbus arrived in the Americas and the Columbian Exchange 1 began.

List of invasive alien vascular plants relevant to Luxembourg

Originally compiled for assessments after the ISEIA protocol, this list mentions invasive neophytes present in Luxembourg and/or occurring and creating problems in at least one of the three adjacent EU member states. It is updated when new species appear. This list will provide a basis for the establishment of a national list of invasive alien species of Luxembourg concern pursuant to Article 12(1) of the EU Regulation 1143/2014 on Invasive Alien Species.

Species Family ISEIA 2 LU-lists EU-list 3
Acer negundo Aceraceae C1    
Ailanthus altissima Simaroubaceae C1    
Ambrosia artemisiifolia Asteraceae C1    
Amelanchier lamarckii Malaceae C1    
Aster lanceolatus Asteraceae C1    
Aster novi-belgii Asteraceae C1    
Atriplex micrantha Amaranthaceae C2    
Azolla filiculoides Azollaceae C1    
Bidens frondosa Asteraceae C2    
Buddleja davidii Buddlejaceae C2    
Bunias orientalis Brassicaceae C1    
Claytonia perfoliata Portulacaceae C1    
Cochlearia danica Brassicaceae non ass.    
Conyza canadensis Asteraceae C3    
Cornus sericea Cornaceae C0    
Cotoneaster horizontalis Malaceae C1    
Crassula helmsii Crassulaceae B0  Alert  
Duchesnea indica Rosaceae C1    
Egeria densa Hydrocharitaceae A0  Alert  
Elodea canadensis Hydrocharitaceae A3  Black  
Elodea nuttallii Hydrocharitaceae A3  Black 2017
Epilobium ciliatum Onagraceae B3  Watch  
Epimedium alpinum Berberidaceae C1    
Erigeron annuus Asteraceae C1    
Fallopia ×bohemica Polygonaceae B1  Watch  
Fallopia japonica Polygonaceae A3  Black  
Fallopia sachalinensis Polygonaceae B1  Watch  
Helianthus tuberosus Asteraceae B2  Watch  
Heracleum mantegazzianum Apiaceae A3  Black 2017
Hydrocotyle ranunculoides Apiaceae A0  Alert 2016
Impatiens balfourii Balsaminaceae B1  Watch  
Impatiens glandulifera Balsaminaceae A3  Black 2017
Impatiens parviflora Balsaminaceae C3    
Lagarosiphon major Hydrocharitaceae A0  Alert 2016
Lemna minuta Lemnaceae B1  Watch  
Ludwigia grandiflora Onagraceae non ass.   2016
Ludwigia peploides Onagraceae non ass.   2016
Lupinus polyphyllus Fabaceae C1    
Lysichiton americanus Araceae non ass.   2016
Mahonia aquifolium Berberidaceae B1  Watch  
Mimulus guttatus Scrophulariaceae C1    
Myriophyllum aquaticum Haloragaceae B1  Watch 2016
Myriophyllum heterophyllum Haloragaceae B0  Alert 2017
Parthenocissus spp. Vitaceae C1    
Pinus nigra Pinaceae A1  Black  
Populus ×canadensis Salicaceae C3    
Prunus laurocerasus Rosaceae C1    
Prunus serotina Rosaceae B1  Watch  
Quercus rubra Fagaceae C1    
Rhus typhina Anacardiaceae B1  Watch  
Robinia pseudoacacia Fabaceae A3  Black  
Rosa rugosa Rosaceae C1    
Rudbeckia laciniata Asteraceae C1    
Senecio inaequidens Asteraceae B2  Watch  
Solidago canadensis Asteraceae A2  Black  
Solidago gigantea Asteraceae A2  Black  
Spiraea alba Rosaceae C1    
Spiraea ×billardii Rosaceae B0  Alert  
Spiraea douglasii Rosaceae B0  Alert  
Syringa vulgaris Oleaceae C1    

 Last updated on Wednesday, May 16, 2018.


  1. Cf.
  2. More info about the Invasive Species Environmental Impact Assessment (ISEIA) in the Risk assessments & IAS lists section on the Info-page.
  3. Year in which the species was published in the list of EU concern.