Invasive alien plants in Belgium
The following species have been listed according to the prioritization process described in EPPO RS 2008/087. For each species, their family, origin and category in Belgium (as defined from the prioritization process) are indicated in the table below. The status of each species in the Global Compendium of Weeds (GCW) is given, to indicate their invasive behaviour elsewhere in the world.
|
Species
|
Family
|
Origin
|
GCW
|
Score
|
Category
|
|
Acer negundo
|
Aceraceae
|
N-Am.
|
SW, EW, AW
|
11
|
A2
|
|
Ailanthus altissima
(EPPO List of Invasive Alien Plants)
|
Simaroubaceae
|
E-As.
|
N, EW, AW
|
12
|
A2
|
|
Ambrosia artemisiifolia
(EPPO List of IAP)
|
Asteraceae
|
N-Am.
|
N, EW, AW
|
8
|
C
|
|
Amelanchier lamarckii
(EPPO List of IAP)
|
Rosaceae
|
N-Am.
|
/
|
9
|
B2
|
|
Aster americanus
|
Asteraceae
|
N-Am.
|
-
|
12
|
A3
|
|
Azolla filiculoides
(EPPO List of IAP)
|
Azollaceae
|
Neotrop.
|
N, EW, AW
|
10
|
B2
|
|
Baccharis halimifolia
(EPPO List of IAP)
|
Asteraceae
|
N-Am.
|
N, EW, AW
|
12
|
A2
|
|
Bidens frondosa
(EPPO List of IAP)
|
Asteraceae
|
N-Am.
|
N, EW, AW
|
9
|
B2
|
|
Buddleia davidii
(EPPO List of IAP)
|
Buddleiaceae
|
E-As.
|
SW, N, EW, AW
|
10
|
B3
|
|
Cornus sericea
(EPPO Alert List)
|
Cornaceae
|
N-Am.
|
EW
|
11
|
A2
|
|
Cotoneaster horizontalis
|
Rosaceae
|
W-As.
|
SW, EW
|
11
|
A2
|
|
Crassula helmsii
(EPPO A2 List)
|
Crassulaceae
|
Austr.
|
N, EW
|
12
|
A2
|
|
Duchesnea indica
|
Rosaceae
|
E-As.
|
SW, EW, AW
|
9
|
B2
|
|
Echinocystis lobata
(EPPO Alert List)
|
Cucurbitaceae
|
N-Am.
|
N, EW, AW
|
11
|
A0
|
|
Egeria densa
(EPPO List of IAP)
|
Hydrocharitaceae
|
S-Am.
|
N, EW, AW
|
12
|
A1
|
|
Elodea canadensis
|
Hydrocharitaceae
|
N-Am.
|
SW, N, EW, AW
|
12
|
A3
|
|
Elodea nuttallii
(EPPO List of IAP)
|
Hydrocharitaceae
|
N-Am.
|
EW, AW
|
12
|
A3
|
|
Epilobium ciliatum
|
Onagraceae
|
N-Am.
|
EW, AW
|
9
|
B3
|
|
Fallopia japonica
(EPPO List of IAP)
|
Polygonaceae
|
E-As.
|
N, SW, EW, AW
|
12
|
A3
|
|
Gaillardia x grandiflora
|
Asteraceae
|
Hort.
|
/
|
8
|
C
|
|
Helianthus tuberosus
(EPPO List of IAP)
|
Asteraceae
|
N-Am.
|
N, EW, AW
|
12
|
A3
|
|
Heracleum mantegazzianum
(EPPO List of IAP)
|
Apiaceae
|
W-As.
|
N, SW, EW, AW
|
11
|
A3
|
|
Hydrocotyle ranunculoides (EPPO A2 list)
|
Apiaceae
|
Pantrop.
|
N, SW, EW, AW
|
12
|
A2
|
|
Impatiens glandulifera
(EPPO List of IAP)
|
Balsaminaceae
|
S-As.
|
N, EW, AW
|
12
|
A3
|
|
Impatiens parviflora
|
Balsaminaceae
|
East ; Cent.-As.
|
EW
|
10
|
B3
|
|
Lagarosiphon major
(EPPO List of IAP)
|
Hydrocharitaceae
|
C-Af.
|
N, SW, EW, AW
|
12
|
A1
|
|
Lemna minuta
|
Lemnaceae
|
Neotrop.
|
/
|
10
|
B3
|
|
Ludwigia grandiflora
(EPPO List of IAP)
|
Onagraceae
|
Neotrop.
|
N
|
12
|
A1
|
|
Ludwigia peploides
(EPPO List of IAP)
|
Onagraceae
|
Neotrop.
|
N, EW, AW
|
12
|
A1
|
|
Lupinus polyphyllus
(EPPO List of IAP)
|
Fabaceae
|
N-Am.
|
SW, EW, AW
|
10
|
B3
|
|
Lysichiton americanus
(EPPO A2 List)
|
Araceae
|
N-Am.
|
/
|
10
|
B1
|
|
Mahonia aquifolium
|
Berberidaceae
|
N-Am.
|
SW, EW, AW
|
12
|
A3
|
|
Myriophyllum aquaticum
(EPPO List of IAP)
|
Haloragaceae
|
S-Am.
|
N, EW, AW
|
12
|
A2
|
|
Persicaria wallichii
(= Persicaria polystachya)
|
Polygonaceae
|
S-As.
|
AW
|
11
|
A1
|
|
Phytolacca americana
|
Phytolaccaceae
|
N-Am.
|
AW
|
11
|
A0
|
|
Prunus laurocerasus
|
Rosaceae
|
Pontic
|
SW, EW, AW
|
9
|
B1
|
|
Prunus serotina
(EPPO List of IAP)
|
Rosaceae
|
N-Am.
|
SW, EW, AW
|
12
|
A3
|
|
Quercus rubra
|
Fagaceae
|
East and North-Am.
|
EW, AW
|
10
|
B3
|
|
Rhododendron ponticum
(EPPO List of IAP)
|
Ericaceae
|
W-Medit.
|
SW, EW
|
11
|
A2
|
|
Rhus typhina
|
Anacardiaceae
|
N-Am.
|
AW
|
10
|
B1
|
|
Robinia pseudoacacia
|
Fabaceae
|
N-Am.
|
SW, N, EW, AW
|
10
|
B2
|
|
Rosa rugosa
|
Rosaceae
|
E-As.
|
N, EW, AW
|
12
|
A2
|
|
Senecio inaequidens
(EPPO List of IAP)
|
Asteraceae
|
S-Af.
|
EW, AW
|
10
|
B2
|
|
Solidago canadensis
(EPPO List of IAP)
|
Asteraceae
|
N-Am.
|
EW, AW
|
11
|
A3
|
|
Solidago gigantea
(EPPO List of IAP)
|
Asteraceae
|
N-Am.
|
EW, AW
|
11
|
A2
|
|
Spiraea spp.
|
Rosaceae
|
N-Am.
|
|
11
|
A2
|
* Abbreviations for the Global Compendium of Weeds column:
W: Weed; N: Noxious Weed; SW: “Sleeper Weed”; EW: “Environmental Weed”; AW: “Agricultural weed”; -: not quoted in the GCW; "/": no clear sign of invasiveness
Sources
E. Branquart (Ed.) (2008) Alert, black and watch lists of invasive species in Belgium. Harmonia version 1.2, Belgian Forum on Invasive species, accessed on March 2008 from: http://ias.biodiversity.be
A Global Compendium of Weeds. http://www.hear.org/gcw/alpha_select_gcw.htm