Invasive exotic plants in Lorraine

Impatiens glandulifera


Many countries and several regions in France have drawn up lists of the invasive exotic plants on their territory. In addition to prolific species whose damaging properties are known, these lists also identify potentially invasive species for the purposes of monitoring and control.

There is no such official list in Lorraine as yet, but a few examples are given below:

Proven invasive exotic plants

Non-indigenous plants that are known to be invasive, with a negative impact on biodiversity and/or public health and/or economic activity in Lorraine.

                Japanese knotweed (Reynoutria japonica)
                Giant knotweed (Reynoutria sachalinensis)
                Himalayan balsam (Impatiens glandulifera)
                Nuttall’s waterweed (Elodea nuttallii)
                Tickseed sunflower (Bidens frondosa)
                Campylopus introflexus
                Small balsam (Impatiens parviflora)
                Black locust tree (Robinia pseudoacacia)
                Canadian goldenrod (Solidago canadensis)
                Giant goldenrod (Solidago gigantea)
                Green-headed coneflower (Rudbeckia laciniata)
                Jerusalem artichoke (Helianthus tuberosus)

Potentially invasive exotic plants:

Non- indigenous plants not currently showing a tendency to develop invasive behaviour in natural or semi-natural environments or proven invasive exotic plants in neighbouring countries or countries with a similar climate.

              Giant cow parsley (Heracleum mantegazzianum)
               Swamp stonecrop (Crassula helmsii)
               Large-flowered primrose-willow (Ludwigia grandiflora)
               Common ragweed (Ambrosia artemisiifolia)
               Narrow-leaved ragwort (Senecio inaequidens)
               Buddleia or butterfly bush (Buddleja davidii)
               Ashleaf maple (Acer negundo)
               Water fern (Azolla filiculoides)
               Parrot feather watermilfoil (Myriophyllum aquaticum)
               Galega (Galega officinalis)
               Michaelmas daisies (Aster novi-belgii)

Exotic plants to be monitored:

Non- indigenous plants not showing a proven invasive nature, or a theoretically negative impact on biodiversity in Lorraine, but for which the possibility of developing these characteristics has not been totally ruled out. 

               Poison ivy (Rhus radicans)
               Turkish rocket (Bunias orientalis)
               American pokeweed (Phytolacca americana)
               Cherry laurel (Prunus laurocerasus)
               Hoary alyssum (Berteroa incana)
               Staghorn sumac (Rhus typhina)
               Tree of heaven (Ailanthus altissima