Weed Risk Analysis Documents

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The following is a list of the available weed risk analysis documents prepared by the Canadian Food Inspection Agency (CFIA).

The CFIA conducts weed risk analyses in accordance with international guidelines for pest risk analysis established by the International Plant Protection Convention (IPPC) of the Food and Agriculture Organization of the United Nations (FAO). For further information on the IPPC models for pest risk analysis, refer to the International Standards for Phytosanitary Measures (ISPMs).

Pest risk analysis is a multi-stage process, and three types of documents are listed below: categorizations, weed risk assessments and risk management documents. Categorizations represent a preliminary stage in the risk analysis process; they may stand alone or be rolled into full weed risk assessments. Risk assessments are science-based evaluations. They summarize the available information on a plant and evaluate the probability of entry, establishment, and spread in Canada, and the potential economic and environmental consequences. Risk management documents provide an evaluation of options to reduce the risk of introduction and spread of a pest (ISPM No. 5); they may also be used for risk communication and public consultation. For some plant species, the CFIA has combined the weed risk assessment and risk management document into a single pest risk analysis document.

Please note that these documents have been prepared by the CFIA for phytosanitary purposes only. They address the risk posed to the Canadian economy and environment by species not yet present in Canada, or present but not widely distributed and under official control.

For more information or to obtain any of the documents on this list please send your request to botany-botanique@inspection.gc.ca.

List of available weed risk analysis documents prepared by the Canadian Food Inspection Agency (CFIA)

A
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Abies homolepis Yes No No Only in cultivation 6 Not assessed No
Abies sibirica Yes No No Only in cultivation 1 Not assessed No
Acanthospermum australe Yes No No No 8 Anthropogenic No
Achillea santolina Yes No No No 8 Not assessed No
Achyranthes aspera Yes No No No 7 Environmental No
Achyranthes japonica Yes Pending No No 5 Environmental No
Acroceras zizanioides Yes No No No 10 Environmental No
Actinoscirpus grossus Yes No No No 8 Agricultural No
Adonis aestivalis Yes Pending No Unknown 5 Agricultural No
Adonis flammea Yes Pending No No 5 Agricultural No
Aegilops cylindrica No Yes Yes Yes 3 Agricultural Yes
Aegilops geniculata Yes Pending No No 6 Agricultural No
Aegilops spp. Yes Pending No Only in cultivation 5 Agricultural A. cylindrica
Ageratum conyziodes No Yes No No 7 Agricultural No
Agrostis avenacea Yes Pending No No 8 Environmental No
Aira elegantissima Yes No No No 5 Environmental No
Ajuga chamaepitys Yes No No No 6 Agricultural No
Akebia quinata Yes Pending No Only in cultivation 4 Environmental No
Albizia julibrissin Yes Pending No Only in cultivation 6 Environmental No
Alhagi maurorum No Yes No No 6 Agricultural No
Alopecurus myosuroides No Yes Yes No 6 Agricultural Yes
Alstroemeria aurea Yes No No Only in cultivation 7 Environmental No
Alternanthera sessilis No Yes Yes No 7 Agricultural No
Amaranthus deflexus Yes No No No 6 Environmental No
Amaranthus graecizans Yes Pending No No 6 Agricultural No
Amaranthus muricatus Yes No No No 9 Not assessed No
Amaranthus palmeri Yes Pending No Yes 5 Agricultural No
Amblyopyrum muticum Yes No No No 5 Not assessed No
Ammi majus Yes No No Yes 6 Environmental No
Ammi visnaga Yes No No Only in cultivation 8 Agricultural No
Ampelopsis glandulosa Yes Pending No Only in cultivation 6 Environmental No
Andropogon gayanus Yes No No No 9 Environmental No
Angelica archangelica Yes No No Only in cultivation 3 Not assessed No
Annona muricata Yes No No Only in cultivation 11 Not assessed No
Anthemis pseudocotula Yes No No No 8 Not assessed No
Apera spica-venti Yes Pending No Yes Not assessed Agricultural No
Aralia elata Yes Pending No Yes 4 Environmental No
Arivela viscosa Yes No No No 8 Agricultural No
Artemisia austriaca Yes Pending No No 4 Environmental No
Artemisia japonica Yes No No Only in cultivation 5 Not assessed No
Arundo donax No Yes Yes Only in cultivation 6 Environmental No
Asparagus asparagoides Yes No No No 9 Environmental No
Asphodelus fistulosus Yes Yes No No 7 Environmental No
Astragalus membranaceus Yes No No Only in cultivation 1 Not assessed No
Austroeupatorium inulifolium Yes No No No 10 Agricultural No
Avena barbata Yes Pending No Only in cultivation 6 Environmental No
Avena strigosa Yes No No Only in cultivation 3 Agricultural No
B
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Bassia prostrata Yes Yes No No 4 Environmental No
Berkheya rigida Yes No No No 8 Environmental No
Bidens pilosa No Yes No No 6 Agricultural No
Bidens subalternans Yes No No No 9 Not assessed No
Bituminaria bituminosa Yes No No No 7 Not assessed No
Blainvillea acmella Yes No No No 8 Agricultural No
Blainvillea dichotoma Yes No No No Not assessed Not assessed No
Blumea lacera Yes No No No 8 Environmental No
Boerhavia diffusa Yes Yes No No 8 Agricultural No
Boissiera squarrosa Yes No No No 8 Agricultural No
Bothriochloa ischaemum Yes Yes Yes No 4 Environmental No
Bothriochloa laguroides Yes No No No 5 Not assessed No
Brachypodium distachyon Yes Yes No No 5 Environmental No
Brachypodium sylvaticum Yes Pending No Yes 2 Environmental No
Brassica carinata Yes No No Only in cultivation 9 Not assessed No
Brassica tournefortii Yes No No No 9 Environmental No
Bromus brachyanthera Yes No No No 8 Agricultural No
Bromus danthoniae Yes Pending No Only in cultivation 5 Agricultural No
Bromus fasciculatus Yes No No No 9 Agricultural No
Bromus madritensis Yes Pending No No 6 Agricultural No
Bromus pectinatus Yes Pending No No 4 Agricultural No
Bryonia alba Yes Pending No No 4 Environmental No
Buddleia davidii Yes No No Yes 5 Not assessed No
C
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Cabomba caroliniana No Yes No Yes Not assessed Environmental No
Cajanus cajan Yes No No No 10 Not assessed No
Calendula officinalis No Yes No Yes 4 Not assessed No
Camelina microcarpa Yes No No Yes Not assessed Not assessed No
Camelina rumelica Yes No No No 6 Agricultural No
Camelina sativa Yes No No Yes Not assessed Not assessed No
Campuloclinium macrocephalum Yes No No No 8 Environmental No
Campylopus introflexus Yes Pending No Yes Not assessed Environmental No
Caragana bungei Yes No No No 2 Not assessed No
Caragana spinosa Yes No No No 2 Not assessed No
Cardiospermum halicacabum Yes No No No 6 Environmental No
Carduus pycnocephalus Yes Pending No No 6 Agricultural No
Carlina vulgaris No Yes No No 5 Not assessed No
Carthamus tenuis Yes No No No 8 Not assessed No
Cassinia arcuata Yes No No No 9 Agricultural No
Cassytha spp. Yes No No No 8 Agricultural No
Celtis sinensis Yes Pending No Only in cultivation 6 Environmental No
Cenchrus caudatus Yes No No No 8 Environmental No
Cenchrus echinatus No Yes Yes No 8 Agricultural No
Centaurea depressa Yes Pending No No 6 Agricultural No
Centaurea iberica No Yes Yes No 6 Agricultural Yes
Centaurea melitensis Yes No No Yes 4 Environmental No
Centaurea phrygia No Yes No No 2 Not assessed No
Centaurea solstitialis No Yes Yes No 5 Environmental Yes
Centaurea virgata Yes Pending No No 4 Environmental No
Centella asiatica Yes Pending No Only in cultivation 6 Environmental No
Centrapalus pauciflous Yes No No Only in cultivation 9 Not assessed No
Cephalaria syriaca Yes Pending No No 6 Agricultural No
Ceratopteris thalictroides Yes No No No 9 Not assessed No
Cestrum elegans Yes Pending No Only in cultivation 8 Environmental No
Cestrum laevigatum Yes Pending No No 8 Environmental No
Chloris pycnothrix Yes No No No 9 Agricultural No
Chrysopogon zizanioides Yes No No No 8 Agricultural No
Coix lacryma-jobi Yes Pending No Only in cultivation 6 Agricultural No
Coleostephus myconis Yes Yes No No 7 Agricultural No
Commelina benghalensis Yes No No No 8 Agricultural No
Commelina diffusa Yes No No No 5 Agricultural No
Consolida regalis Yes No No Yes Not assessed Agricultural No
Cortaderia jubata Yes Pending No No 8 Environmental No
Cortaderia richardii Yes Pending No Only in cultivation 8 Environmental No
Cosmos sulphureus Yes No No Only in cultivation Not assessed Not assessed No
Cotoneaster dammeri Yes No No Only in cultivation 6 Not assessed No
Cotoneaster horizontalis Yes No No Yes 6 Environmental No
Crambe abyssinica Yes No No Only in cultivation Not assessed Not assessed No
Crassocephalum crepidiodies Yes Pending No No 7 Agricultural No
Crotalaria juncea Yes No No No 9 Environmental No
Crupina vulgaris No Yes Yes No 4 Agricultural Yes
Cuphea hybrid No Yes No No 3 Not assessed No
Cuphea hyssopifolia Yes No No No 8 Not assessed No
Cuphea ignea Yes No No No 8 Not assessed No
Cuphea llavea Yes No No No 8 Not assessed No
Cuphea procumbens Yes No No Only in cultivation 6 Not assessed No
Cuscuta approximata Yes Yes No Yes 3 Agricultural Yes
Cuscuta australis Yes No No No 5 Agricultural Yes
Cuscuta cassytoides Yes No No No 8 Agricultural Yes
Cuscuta chinensis Yes Yes No No 3 Agricultural Yes
Cuscuta epilinum Yes Yes No Yes 3 Agricultural Yes
Cuscuta epithymum Yes No No Yes 5 Agricultural Yes
Cuscuta europaea Yes Yes No No 5 Agricultural Yes
Cuscuta japonica Yes No No No 8 Agricultural Yes
Cuscuta monogyna Yes No No No 7 Agricultural Yes
Cuscuta reflexa Yes No No No 8 Agricultural Yes
Cuscuta suaveolens Yes Yes No No 4 Agricultural Yes
Cussonia spicata Yes No No No 8 Not assessed No
Cyamopsis tetragonoloba Yes No No No 7 Not assessed No
Cynanchum laeve Yes Pending No No 5 Agricultural No
Cynoglossum lanceolatum Yes No No No 7 Agricultural No
Cyanotis axillaris Yes No No No 10 Agricultural No
Cyperus exaltatus Yes No No No 8 Agricultural No
Cyperus flavidus Yes No No No 7 Agricultural No
Cyperus rotundus No Yes Yes No 7 Agricultural No
D
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Dactyloctenium aegypticum Yes No No No 5 Agricultural No
Desmostachya bipinnata Yes Pending No No 7 Agricultural No
Dicksonia antarctica Yes No No Only in cultivation 8 Not assessed No
Didymosphenia geminata No Yes No Yes 3 Environmental No
Digitaria abyssinica Yes No No No 8 Agricultural No
Digitaria ciliaris Yes No No No 5 Agricultural No
Digitaria ternata Yes No No No 8 Agricultural No
Digitaria velutina Yes No No No 9 Agricultural No
Dioscorea nipponica Yes No No Only in cultivation 3 Not assessed No
Dioscorea polystachya No Yes Yes Only in cultivation 5 Environmental Yes
Diospyros lotus Yes No No Only in cultivation 6 Environmental No
Drosera capensis Yes Pending No Only in cultivation 8 Environmental No
E
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Echinochloa colonum No Yes Yes No 6 Agricultural No
Echium plantagineum No Yes Yes Yes 5 Environmental Yes
Eleusine coracana Yes No No No 9 Agricultural No
Eleusine indica Yes No No Yes 5 Agricultural No
Eleutherococcus senticosus Yes No No Only in cultivation 2 Not assessed No
Emex australis Yes No No No 8 Agricultural No
Emex spinosa Yes No No No 8 Environmental No
Eragrostis tef Yes No No No 9 Not assessed No
Erigeron bonariensis Yes Pending No No 7 Agricultural No
Eriochloa villosa No Yes Yes Yes 2 Agricultural Yes
Erucaria hispanica Yes No No No 8 Not assessed No
Erysimum cuspidatum Yes No No No 6 Not assessed No
Euphorbia hirta Yes No No No 8 Agricultural No
Euphorbia lagascae Yes No No Only in cultivation 4 Not assessed No
Euphorbia oblongata Yes No No No 8 Environmental No
F
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Falcaria vulgaris Yes Pending No No 4 Agricultural No
Fallopia baldschuanica Yes Pending No Only in cultivation 5 Environmental No
Fargesia rufa Yes No No Only in cultivation 5 Not assessed No
Fedia cornucopiae Yes No No Only in cultivation 8 Agricultural No
Ficaria verna Yes Pending No Yes 4 Environmental No
Fuirena ciliaris Yes No No No 6 Agricultural No
Fumaria parviflora Yes Pending No No 6 Agricultural No
G
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Galium divaricatum Yes No No Unknown Unknown Not assessed No
Galium verrucosum Yes No No No 6 Agricultural No
Galega officinalis Yes Yes Yes Yes 5 Environmental No
Geranium dissectum Yes No No Yes 5 Not assessed No
Geranium lucidum No Yes No Yes 6 Environmental No
Gevuina avellana Yes No No No 8 Not assessed No
Gladiolus undulatus Yes No No No 9 Environmental No
Glaucium corniculatum Yes Pending No Only in cultivation 6 Environmental No
Gnaphalium affine Yes No No No 6 Agricultural No
Gundelia tournefortii Yes Pending No No 5 Not assessed No
Gynandropsis gynandra Yes Pending No No 7 Agricultural No
H
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Hakea gibbosa Yes Pending No No 9 Environmental No
Hakea salicifolia Yes Pending No No 8 Environmental No
Hakea sericea Yes Pending No No 8 Environmental No
Halogeton glomeratus No Yes Yes No 3 Agricultural No
Hedysarum coronarium Yes No No No 8 Not assessed No
Heliotropium europaeum Yes Pending No No 5 Agricultural No
Heracleum mantegazzianum Yes Yes No Yes 3 Environmental No
Hibiscus cannabinus Yes No No No 8 Not assessed No
Hippophae rhamnoides Yes No No Yes Not assessed Not assessed No
Holcus mollis Yes Pending No Yes 4 Environmental No
Hordeum vulgare subsp. spontaneum Yes Pending No No 6 Agricultural No
Hypochaeris glabra Yes No No Yes 5 Environmental No
I
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Ibicella lutea Yes No No No 8 Agricultural No
Imperata cylindrica Yes Yes No Only in cultivation 8 Agricultural No
Inula britannica Yes Yes No Yes 4 Environmental No
Inula conyzae Yes No No No 5 Agricultural No
Ipomoea hederacea Yes Pending No Yes 3 Agricultural No
Ipomoea lacunosa Yes Pending No Yes 5 Agricultural No
Ipomoea quamoclit Yes No No Unknown 6 Environmental No
Isachne globosa Yes No No No 8 Agricultural No
Ischaemum muticum Yes No No No 9 Agricultural No
J
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Jasminum humile No Yes No No 7 Environmental No
Jatropha curcas Yes Yes No Unknown 9 Environmental No
Jatropha gossypiifolia Yes No No No 9 Environmental No
Jatropha podagrica Yes No No No 9 Anthropogenic No
Jovellana punctata Yes No No No 8 Not assessed No
Juglans mandshurica Yes No No Only in cultivation 4 Not assessed No
K
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Kyllinga polyphylla Yes No No No 9 Agricultural No
Kyllinga pulchella Yes No No No 8 Agricultural No
L
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Lablab purpureus Yes No No Yes 9 Agricultural No
Lactuca orientalis Yes No No No 7 Not assessed No
Leptochloa panicea No Yes No No 6 Agricultural No
Leptospermum scoparium Yes No No Only in cultivation 7 Environmental No
Lepyrodiclis holosteoides Yes Pending No No 4 Agricultural No
Lespedeza cuneata Yes Pending No Yes 5 Environmental No
Leucas martinicensis Yes No No No 9 Agricultural No
Leucojum aestivum Yes No No Yes 4 Environmental No
Leycesteria formosa Yes Pending No Only in cultivation 8 Environmental No
Ligustrum obtusifolium Yes No No Only in cultivation 3 Environmental No
Limnanthes alba Yes Yes No Yes 7 Environmental No
Linaria dalmatica Yes No No Yes Not assessed Environmental No
Linaria genistifolia Yes Pending No No 4 Environmental No
Linaria repens Yes No No Yes Not assessed Agricultural No
Linaria vulgaris Yes No No Yes Not assessed Agricultural No
Linum bienne Yes Pending No Yes 5 Agricultural No
Linum decumbens Yes No No No 9 Not assessed No
Linum setaceum Yes No No No 9 Not assessed No
Linum stelleroides Yes Pending No No 4 Agricultural No
Linum strictum Yes Pending No No 6 Environmental No
Liriope muscari Yes No No Only in cultivation 6 Not assessed No
Lolium rigidum Yes Pending No No 7 Agricultural No
Ludwigia prostrata Yes Pending No No 5 Agricultural No
Lupinus luteus Yes No No Only in cultivation Not assessed Agricultural No
Luziola subintegra Yes No No No 10 Environmental No
Lygodium japonicum Yes Yes No No 8 Environmental No
M
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Malva nicaeensis Yes No No No 8 Agricultural No
Marsilea macropoda Yes Pending No No 8 Aquatic No
Mauranthemum paludosum Yes No No Only in cultivation 9 Anthropogenic No
Megathyrsus maximus Yes No No No 8 Agricultural No
Melia azedarach Yes No No Only in cultivation 7 Environmental No
Melianthus comosus Yes No No No 9 Agricultural No
Microciturs australasica Yes No No No 9 Not assessed No
Microstegium vimineum No Yes Yes No 5 Environmental Yes
Mikania micrantha Yes Yes No No 8 Agricultural No
Milium vernale No Yes No No 5 Agricultural No
Miscanthus giganteus No Yes No Yes 4 Environmental No
Mollugo pentaphylla Yes No No No 5 Agricultural No
Morus nigra Yes No No Only in cultivation 7 Environmental No
Mucuna pruriens Yes No No No 7 Environmental No
Myoporum laetum Yes No No No 9 Environmental No
N
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Nassella charruana Yes No No No 9 Agricultural No
Nassella hyalina Yes No No No 8 Environmental No
Nassella leucotricha Yes No No No 8 Environmental No
Nassella megapotamica Yes No No No 8 Not assessed No
Nassella neesiana Yes Pending No No 7 Environmental No
Nassella tenuissima No Yes No Only in cultivation 6 Agricultural No
Nasella trichotoma No Yes Yes No 7 Environmental Yes
Nepeta sibirica Yes No No Yes 2 Not assessed No
Notobasis syriaca Yes No No No 8 Agricultural No
Nymphoides peltata Yes Yes No Yes 4 Aquatic No
O
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Olea europaea Yes No No Only in cultivation 8 Environmental No
Oplismenus hirtellus subsp. undulatifolius Yes Pending No No 6 Environmental No
Opuntia stricta No Yes No No 8 Environmental No
Oryza sativa Yes No No No 3 Not assessed No
Ottochloa nodosa Yes No No No 9 Agricultural No
Oxalis articulata Yes No No No 8 Environmental No
Oxalis latifolia Yes No No No 8 Agricultural No
Oxalis perdicaria Yes No No No 9 Environmental No
Oxygonum sinuatum Yes No No No 9 Agricultural No
P
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Pachira aquatica Yes No No No 10 Not assessed No
Papaver somniferum Yes No No Yes 3 Agricultural No
Parthenium hysterophorus Yes No No No 7 Agricultural No
Paspalum dilatatum No Yes Yes No 6 Agricultural Yes
Paspalum distichum No Yes No No 6 Agricultural No
Paspalum laeve Yes No No No 6 Agricultural No
Paspalum racemosum Yes No No No 8 Not assessed No
Paspalum scrobiculatum Yes No No No 7 Environmental No
Passiflora apetala Yes No No No 10 Environmental No
Passiflora mollissima Yes No No No 8 Environmental No
Paulownia elongata Yes No No Only in cultivation 6 Not assessed No
Paulownia fortunei Yes No No No 6 Not assessed No
Paulownia hybrid Yes No No Only in cultivation 6 Not assessed No
Paulownia tomentosa Yes Pending No Only in cultivation 5 Environmental No
Peganum harmala No Yes No No 3 Environmental No
Pennisetum clandestinum Yes No No No 9 Environmental No
Pennisetum purpureum Yes No No Yes 9 Agricultural No
Perilla frutescens Yes Yes No Unknown 3 Agricultural No
Persicaria bungeana Yes Pending No No 2 Agricultural No
Persicaria perfoliata Yes Yes Yes No 6 Environmental Yes
Persicaria thunbergii Yes Pending No No 3 Agricultural No
Phacelia tanacetifolia Yes No No No 6 Not assessed No
Phalaris brachystachys Yes No No No 7 Agricultural No
Phalaris minor Yes Pending No No 7 Agricultural No
Phalaris paradoxa Yes Pending No No 7 Agricultural No
Phellodendron amurense Yes No No Only in cultivation 3 Environmental No
Phoradendron leucarpum Yes Yes No No 7 Environmental No
Phyllostachys bissetii Yes Pending No Only in cultivation 5 Environmental No
Picnomon acarna Yes Pending No No 5 Agricultural No
Pinellia ternata Yes Pending No Yes 5 Agricultural No
Pinus pinaster No Yes No No 8 Environmental No
Pinus sibirica Yes No No Only in cultivation 1 Not assessed No
Pithecoctenium crucigerum Yes Pending No No 9 Environmental No
Pleioblastus argenteostriatus Yes No No Only in cultivation 7 Not assessed No
Pleioblastus fortunei Yes No No Only in cultivation 6 Not assessed No
Plukenetia volubilis Yes No No No 10 Not assessed No
Praxelis clematidea Yes No No No 9 Agricultural No
Proboscidea louisianica Yes No No Yes 6 Agricultural No
Psidium cattleianum Yes No No No 9 Environmental No
Pueraria montana No Yes Yes Yes 5 Environmental No
R
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Ranunculus arvensis Yes Pending No No 5 Agricultural No
Rapistrum perenne Yes No No No 6 Not assessed No
Rauvolfia vomitoria Yes No No No 10 Environmental No
Rhamnus alaternus Yes No No No 7 Environmental No
Richardia brasiliensis Yes No No No 7 Agricultural No
Rottboellia cochinchinensis Yes Yes No No 6 Agricultural No
Rubus alceifolius Yes No No No 8 Agricultural No
Rumex nepalensis Yes Pending No No 5 Agricultural No
Rumex pulcher Yes No No No 6 Agricultural No
Rumex sagittatus Yes No No No 8 Environmental No
S
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Saccharum spontaneum Yes Yes No No 5 Agricultural No
Sagittaria pygmaea Yes No No No 7 Aquatic No
Salvia aethiopis Yes Pending No No 5 Environmental No
Salvia sclarea Yes Pending No Only in cultivation 5 Agricultural No
Scorzonera tau-saghyz Yes No No No 5 Not assessed No
Senecio angulatus Yes No No No 8 Environmental No
Senecio inaequidens Yes Yes Yes No 6 Agricultural Yes
Senecio madagascariensis No Yes Yes No 8 Agricultural Yes
Senecio pterophorus Yes No No No 8 Agricultural No
Senecio vernalis Yes No No No 6 Agricultural No
Senegalia catchetu Yes No No No 9 Agricultural No
Senna obtusifolia Yes No No No 7 Agricultural No
Senna occidentalis Yes No No No 8 Agricultural No
Senna tora Yes No No No 7 Agricultural No
Sesbania exaltata Yes Pending No Yes 6 Agricultural No
Setaria pumila subsp. pallidefusca Yes No No No 7 Agricultural No
Sida acuta Yes No No No 8 Agricultural No
Sideritis montana Yes Pending No No 3 Agricultural No
Silene pendula Yes No No No 5 Not assessed No
Siraitia grosvenorii Yes No No Only in cultivation 9 Not assessed No
Sium sisarum Yes No No No 5 Not assessed No
Solandra maxima Yes No No No 9 Not assessed No
Solanum aviculare Yes No No Yes 6 Not assessed No
Solanum elaeagnifolium No Yes Yes No 5 Agricultural Yes
Solanum sisymbriifolium Yes No No Yes 5 Agricultural No
Soliva sessilis No Yes No Yes 7 Environmental No
Spartium junceum Yes Pending No Only in cultivation 7 Environmental No
Spermacoce alata Yes No No No 9 Agricultural No
Sphaerophysa salsula Yes Pending No Yes 4 Agricultural No
Stachys annua Yes Pending No Yes 2 Agricultural No
Syringa josikaea Yes No No Only in cultivation 2 Not assessed No
Syringa komarowii subsp. reflexa Yes No No Only in cultivation 3 Not assessed No
Syringa oblata Yes No No Only in cultivation 3 Not assessed No
Syringa pubescens subsp. microphylla Yes No No Only in cultivation 3 Not assessed No
Syringa reticulata Yes No No Only in cultivation 4 Not assessed No
Syringa villosa Yes No No Only in cultivation 2 Not assessed No
Syringa wolfii Yes No No Only in cultivation 4 Not assessed No
T
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Taeniatherum caput-medusae No Yes No No 5 Environmental No
Tagetes minuta Yes No No Unknown 6 Agricultural No
Tamarix spp. No Yes No Only in cultivation 3 Environmental No
Taraxacum kok-saghyz Yes Yes Yes Only in cultivation 5 Agricultural No
Tarchonanthus camphoratus Yes No No No 8 Agricultural No
Thesium arvense Yes No No Yes 3 Environmental No
Toona sinensis Yes No No Only in cultivation 5 Environmental No
Tordylium maximum Yes No No No 6 Agricultural No
Torilis arvensis Yes Pending No Yes 5 Agricultural No
Trachyspermum ammi Yes No No Only in cultivation 7 Not assessed No
Trapa natans No Yes No Yes 1 Environmental No
Tridax procumbens Yes Yes No No 8 Agricultural No
Trifolium vesiculosum Yes No No No 6 Not assessed No
Turnera ulmifolia Yes No No Only in cultivation 9 Not assessed No
U
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Ulva lactuca Yes No No Yes Not assessed Aquatic No
Urochloa fasciculata Yes No No No 7 Not assessed No
Urochloa panicoides Yes Yes No No 8 Agricultural No
Utricularia aurea Yes No No No 7 Aquatic No
Utricularia bifida Yes No No No 7 Agricultural No
Utricularia livida Yes Pending No Only in cultivation 8 Environmental No
Utricularia sandersonii Yes No No Only in cultivation 9 Environmental No
V
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Ventenata dubia Yes Pending No Unknown 5 Agricultural No
Vigna unguiculata Yes No No Only in cultivation Not assessed Not assessed No
Vincetoxicum hirundinaria Yes No No No 6 Not assessed No
Viscum album Yes Yes No Unknown 6 Agricultural No
Vitex rotundifolia Yes Yes No Yes 8 Environmental No
W
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Wisteria spp. Yes No No Only in cultivation 5 Environmental No
Wollemia nobilis No Yes No Only in cultivation 7 Environmental No
X
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Xeranthemum annuum Yes No No Only in cultivation 5 Not assessed No
Z
Species Categorization Weed Risk Assessment Risk Management Document Present in Canada Plant Hardiness Zone Impact Potential (most representative) Regulated (Plant Protection Act)
Zygophyllum fabago No Yes Yes No 5 Agricultural Yes
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