This table lists invasive and potentially invasive plant species profiled by the Pacific Island Ecosystems at Risk project (PIER) that occur in the Province of British Columbia. It includes those of environmental concern (including those that are probably of threat only to islands with high elevations) as well as agricultural and ruderal weeds. Each species is linked by its scientific name to an individual write-up containing relevant information.
The information in this table is based on the supporting data and may not represent the current situation. Note also there may be discrepancies among data presented at geographic resolutions (e.g., island vs. island group vs. country-territory-state levels), depending upon the reliability of the data at each level.
Species are listed in alphabetic order. You can browse this list or use the "find" function on your web browser to search by scientific name.
Can't find it here? Check the list of synonyms for other names (the more common synonyms are included below) or search other lists and databases available on the Internet.
Stumped by botanical terms? Here are links to a brief glossary and a search engine for botanical terms.
| Scientific name (+Family) | Often-used other Latin names | Habit |
Primarily a threat
at high elevations? |
| Acer negundo (Aceraceae) | tree | No | |
| Aira praecox (Poaceae) | Aspris praecox (L.) Nash | grass | Yes |
| Ambrosia psilostachya (Asteraceae) | Ambrosia coronopifolia Torr. & A. Gray | herb | No |
| Anthemis arvensis (Asteraceae) | herb | No | |
| Anthemis cotula (Asteraceae) | herb | No | |
| Anthoxanthum nitens (Poaceae) | Hierochloe borealis Roem. & Schult.; Hierochloe odorata (L.) P. Beauv.; Holcus odoratus L.; Poa nitens Weber; Torresia odorata (L.) Hitchc. | grass | No |
| Brassica juncea (Brassicaceae) | herb | No | |
| Camelina sativa (Brassicaceae) | Camelina parodii Ibarra & La Porte; Myagrum sativum L. | herb | Yes |
| Campanula rapunculoides (Campanulaceae) | Campanula cordifolia K. Koch; Campanula rhomboidalis Gorter; Campanula trachelioides M. Bieb. | herb | Yes |
| Cardamine flexuosa (Brassicaceae) | herb | No | |
| Carthamus lanatus (Asteraceae) | Carthamus baeticus (Boiss. & Reut.) Nyman; Carthamus creticus L.; Carthamus lanatus subsp. baeticus (Boiss. & Reut.) Maire; Carthamus turkestanicus Popov; Kentrophyllum baeticum Boiss. & Reut. | herb | No |
| Centaurium erythraea (Gentianaceae) | herb | No | |
| Cerastium fontanum subsp. vulgare (Caryophyllaceae) | Cerastium fontanum subsp. triviale (Spenn.) Jalas; Cerastium vulgare Hartm. | herb | No |
| Cerastium glomeratum (Caryophyllaceae) | herb | No | |
| Chamaesyce maculata (Euphorbiaceae) | Euphorbia maculata L. | herb | No |
| Chenopodium glaucum (Chenopodiaceae) | herb | No | |
| Cichorium intybus (Asteraceae) | herb | No | |
| Conium maculatum (Apiaceae) | herb | No | |
| Coronopus didymus (Brassicaceae) | Lepidium didymum L. | herb | No |
| Cotula coronopifolia (Asteraceae) | herb | No | |
| Crepis capillaris (Asteraceae) | Crepis virens L. | herb | Yes |
| Crepis vesicaria subsp. taraxacifolia (Asteraceae) | Crepis taraxacifolia Thuill.; Crepis vesicaria subsp. haenseleri (Boiss. ex DC.) P. D. Sell | herb | No |
| Cuscuta campestris (Convolvulaceae) | vine | No | |
| Cynosurus echinatus (Poaceae) | herb | No | |
| Cytisus scoparius (Fabaceae) | shrub | No | |
| Digitalis purpurea (Plantaginaceae) | Digitalis amandiana Samp. | herb | No |
| Echium vulgare (Boraginaceae) | herb | Yes | |
| Euphorbia lathyris (Euphorbiaceae) | Euphorbia lathyrus L., orth. var. | herb | No |
| Festuca rubra (Poaceae) | grass | No | |
| Fragaria chiloensis (Rosaceae) | Fragaria sandwicensis Decne. [Fragaria chiloensis subsp. sandwicensis] | herb | Yes |
| Fragaria vesca (Rosaceae) | herb | No | |
| Galium aparine (Rubiaceae) | herb | No | |
| Gamochaeta purpurea (Asteraceae) | Gnaphalium purpureum L. | herb | No |
| Gastridium phleoides (Poaceae) | Lachnagrostis phleoides Nees & Meyen | grass | Yes |
| Geranium pusillum (Geraniaceae) | herb | No | |
| Helianthus annuus (Asteraceae) | Helianthus lenticularis Douglas | herb | No |
| Hydrocotyle ranunculoides (Araliaceae) | herb | No | |
| Juncus tenuis (Juncaceae) | rush | No | |
| Lamium amplexicaule (Lamiaceae) | herb | Yes | |
| Lapsana communis (Asteraceae) | Lapsana grandiflora M. Bieb; Lapsana intermedia M. Bieb; Lapsana ramosissima Boiss. | herb | Yes |
| Lathyrus latifolius (Fabaceae) | Lathyrus latifolius var. splendens Groenl. & Rümpler; Lathyrus purpureus Gilib., nom. inval. | herb | No |
| Lepidium virginicum (Brassicaceae) | herb | No | |
| Linaria dalmatica (Plantaginaceae) | Antirrhinum dalmaticum L.; Linaria genistifolia subsp. dalmatica (L.) Maire & Petitm. | herb | Yes |
| Linum usitatissimum (Linaceae) | Linum crepitans (Boenn.) Dumort.; Linum humile Mill. | herb | No |
| Lupinus polyphyllus (Fabaceae) | herb | No | |
| Lythrum hyssopifolia (Lythraceae) | herb | No | |
| Madia sativa (Asteraceae) | herb | Yes | |
| Medicago arabica (Fabaceae) | Medicago cordata Desr.; Medicago maculata Sibth.; Medicago polymorpha var. arabica L. | herb | No |
| Medicago sativa (Fabaceae) | Medicago caerulea Less. ex Ledeb.; Medicago falcata L. | herb | No |
| Melissa officinalis (Lamiaceae) | herb | No | |
| Mentha aquatica (Lamiaceae) | Mentha palustris Mill. | aquatic herb | Yes |
| Myosotis sylvatica (Boraginaceae) | herb | Yes | |
| Myriophyllum spicatum (Haloragaceae) | aquatic herb | No | |
| Papaver somniferum (Papaveraceae) | herb | No | |
| Persicaria punctata (Polygonaceae) | Polygonum punctatum Elliott | herb | No |
| Picris hieracioides (Asteraceae) | Picris japonica Thunb.; Picris longifolia Boiss. & Reut. | herb | No |
| Poa pratensis (Poaceae) | Poa angustifolia L. | grass | Yes |
| Polycarpon tetraphyllum (Caryophyllaceae) | Mollugo tetraphylla L. | herb | No |
| Populus nigra (Salicaceae) | Populus italica (Münchh.) Moench; Populus nigra var. italica Münchh.; Populus nigra var. pyramidalis (Rozier) Spach; Populus pyramidalis Rozier; Populus thevestina Dode | tree | Yes |
| Prunella vulgaris (Lamiaceae) | Prunella asiatica Nakai | herb | Yes |
| Prunus cerasus (Rosaceae) | Cerasus vulgaris Miller; Prunus vulgaris Schur | tree | Yes |
| Robinia pseudoacacia (Fabaceae) | tree | Yes | |
| Rosa multiflora (Rosaceae) | shrub | Yes | |
| Rumex conglomeratus (Polygonaceae) | Rumex foliosus Rech. f. | herb | No |
| Sagittaria latifolia (Alismataceae) | aquatic herb | No | |
| Sanicula crassicaulis (Apiaceae) | herb | No | |
| Schizachyrium scoparium (Poaceae) | Andropogon scoparius Michx. | grass | No |
| Senecio vulgaris (Asteraceae) | herb | No | |
| Setaria viridis (Poaceae) | Chaetochloa viridis (L.) Scribn.; Panicum viride L.; Setaria italica (L.) P. Beauv. subsp. viridis (L.) Thell.; Setaria pachystachys (Franch. & Sav.) Matsum. | grass | No |
| Sherardia arvensis (Rubiaceae) | herb | No | |
| Silene gallica (Caryophyllaceae) | Silene anglica L. | herb | No |
| Silybum marianum (Asteraceae) | Carduus marianus L. | herb | No |
| Solidago canadensis (Asteraceae) | herb | No | |
| Soliva sessilis (Asteraceae) | Gymnostyles pterosperma Juss.; Soliva pterosperma (Juss.) Less. | herb | No |
| Spergula arvensis (Caryophyllaceae) | Spergula maxima Weihe | herb | No |
| Spergularia marina (Caryophyllaceae) | Spergularia salina J. Presl & C. Presl | herb | No |
| Spergularia rubra (Caryophyllaceae) | Arenaria rubra L. | herb | No |
| Sphagnum palustre (Sphagnaceae) | moss | No | |
| Tamarix parviflora (Tamaricaceae) | shrub | No | |
| Tanacetum parthenium (Asteraceae) | Chrysanthemum parthenium (L.) Bernh.; Chrysanthemum praealtum Vent.; Leucanthemum parthenium (L.) Gren. & Godr.; Matricaria parthenium L. | herb | No |
| Trifolium dubium (Fabaceae) | Trifolium minus Sm.; Trifolium parviflorum Bunge ex Nyman | herb | No |
| Trifolium pratense (Fabaceae) | herb | No | |
| Trifolium repens (Fabaceae) | Trifolium occidentale Coombe | herb | No |
| Typha latifolia (Typhaceae) | aquatic herb | No | |
| Ulmus pumila (Ulmaceae) | tree | Yes | |
| Urtica urens (Urticaceae) | herb | No | |
| Vallisneria americana (Hydrocharitaceae) | Vallisneria gigantea Graebn. | aquatic herb | No |
| Veronica anagallis-aquatica (Plantaginaceae) | aquatic fern | Yes | |
| Veronica arvensis (Plantaginaceae) | Veronica sartoriana Boiss. & Heldr. | herb | No |
| Veronica persica (Plantaginaceae) | Veronica agrestis var. byzantina Sm.; Veronica byzantina (Sibth. & Sm.) Britton et al.; Veronica tournefortii C. C. Gmel. | herb | No |
| Vinca major (Apocynaceae) | herb | No |