We have developed a scorecard template to help us rate, for a given species, its impacts and our ability to respond to the species. We have drafted scorecards for over 200 species. Please select review next to the species you know, and use the comment form on the scorecard to let us know what scores we should consider changing. If you don't see a scorecard here for a species that you think should have a scorecard drafted, please choose Review Species List and use the comment form there. For a tabular presentation of scorecard values for multiple species, choose View Scorecard Summary.

Species Type Subtype Impact Ability to Respond Confidence Extentsort icon
view Brassica nigra
black mustard
plant herbaceous 9 5 high widespread
view Bromus diandrus
ripgut brome
plant grass 18 9 high widespread
view Bromus hordeaceus
soft brome
plant grass 7 9 high widespread
view Bromus tectorum
downy brome
plant grass 17 8 high widespread
view Cardaria draba
hoary cress
plant herbaceous 11 12 high widespread
view Carpobrotus edulis
iceplant
plant herbaceous 8 13 high widespread
view Cortaderia jubata
jubatagrass
plant grass 12 14 high widespread
view Cortaderia selloana
pampasgrass
plant grass 9 13 high widespread
view Dittrichia graveolens
stinkwort
plant herbaceous 11 8 high widespread
view Ehrharta calycina
purple veldtgrass
plant grass 9 7 high widespread
view Eucalyptus globulus
Tasmanian blue gum
plant woody 12 9 high widespread
view Isatis tinctoria
dyer's woad
plant herbaceous 6 12 high widespread
view Lepidium latifolium
perennial pepperweed
plant herbaceous 18 12 high widespread
view Lolium multiflorum
Italian ryegrass
plant grass 10 9 high widespread
view Taeniatherum caput-medusae
medusahead
plant grass 25 10 high widespread
view Acroptilon repens
Russian knapweed
plant herbaceous 19 11 high widespread
view Ammophila arenaria
European beachgrass
plant grass 13 8 high widespread
view Carthamus lanatus
woolly distaff thistle
plant herbaceous 18 12 high widespread
view Centaurea calcitrapa
purple starthistle
plant herbaceous 19 12 high widespread
view Centaurea solstitialis
yellow starthistle
plant herbaceous 19 13 high widespread
view Cirsium arvense
Canada thistle
plant herbaceous 20 11 high widespread
view Cirsium vulgare
bull thistle
plant herbaceous 18 8 high widespread
view Conium maculatum
poison-hemlock
plant herbaceous 16 6 high widespread
view Convolvulus arvensis
field bindweed
plant herbaceous 8 7 high widespread
view Cyperus rotundus
purple nutsedge
plant herbaceous 8 10 high widespread
view Cytisus scoparius
Scotch broom
plant woody 18 13 high widespread
view Delairea odorata
Cape-ivy
plant herbaceous 12 13 high widespread
view Foeniculum vulgare
fennel
plant herbaceous 8 11 high widespread
view Egeria densa
Brazilian egeria
plant herbaceous 21 11 high widespread
view Eichhornia crassipes
water hyacinth
plant herbaceous 18 12 high widespread
view Genista monspessulana
French broom
plant woody 18 10 high widespread
view Hypericum perforatum
common St. John's wort
plant herbaceous 11 11 high widespread
view Rattus rattus
Ship rat
vertebrate mammal 25 17 high widespread
view Felis catus
Feral cat
vertebrate mammal 16 12 high widespread
view Mentha pulegium
pennyroyal
plant herbaceous 9 6 medium widespread
view Mesembryanthemum crystallinum
crystalline iceplant
plant herbaceous 1 10 high widespread
view Myriophyllum spicatum
Eurasian watermilfoil
plant herbaceous 21 10 high widespread
view Pennisetum setaceum
crimson fountaingrass
plant grass 6 10 high widespread
view Potamogeton crispus
curlyleaf pondweed
plant herbaceous 19 4 high widespread
view Molothrus ater
Brown-headed cowbird
vertebrate bird 17 11 VALUE REQUIRED widespread
view Raphanus sativus
radish
plant herbaceous 10 5 high widespread
view Ricinus communis
castorbean
plant herbaceous 7 7 high widespread
view Rubus armeniacus
Himalaya blackberry
plant woody 16 5 high widespread
view Salsola tragus
Russian-thistle
plant herbaceous 16 7 high widespread
view Sorghum halepense
johnsongrass
plant grass 6 9 high widespread
view Tamarix parviflora
smallflower tamarisk
plant woody 16 17 high widespread
view Tamarix ramosissima
saltcedar
plant woody 16 15 high widespread
view Vinca major
big periwinkle
plant herbaceous 8 9 high widespread
view Tylenchulus semipenetrans
citrus nematode
invertebrate nematode 11 4 high widespread
view Rattus norvegicus
Norway rat
vertebrate mammal 20 4 high widespread
view Mus musculus
House mouse
vertebrate mammal 23 5 high widespread
view Sturnus vulgaris
European starling
vertebrate bird 23 7 high widespread
view Pasteurella multocida
Avian cholera
disease bacterium 21 15 medium widespread