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| fetid marigold ||  ''[[Dyssodia papposa]]''  
 
| fetid marigold ||  ''[[Dyssodia papposa]]''  
 
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| barnyard grass ||  ''Echinochloa crusgalli'' [http://www.weedinfo.ca/weed.php?w=ECHCG]
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| barnyard grass ||  ''[[Echinochloa crusgalli]]''
 
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| wild cucumber ||  ''[[Echinocystis lobata]]''
 
| wild cucumber ||  ''[[Echinocystis lobata]]''

Revision as of 06:18, 3 March 2015

Posey’s Rogues: A Gallery of Exotic Invasive and Non-invasive Plants of Alberta

Introduction

Getting started

Have a name, and want to find information? Use the search function in the top right corner to find all references to either a common or scientific name.

Have a plant, and want to know what it is? At present all we can offer are the thumbnails in The Rogue's Portrait Galleries, below, which link to more information if you can find a picture that matches your plant.

Want to contribute? See Notes for Contributors.

Interested in Alberta weed regulations? See Act and Regulations or Weed regulation.

Consult the Mediawiki User's Guide for information on using the software. Try editing where it will do no harm, in the Sandbox

Posey’s Rogues Portrait Galleries

Some species have no pictures at all, and the gallery only has pictures that might be of help while browsing thumbnails for an unidentified plant. On individual species pages (accessed from the list of species below) there are additional pictures.

List of species

The species in the table below are generally listed as invasive by one or more authorities. All are alien in Alberta, unless noted otherwise (some native species are included to differentiate them from similar exotics). Many additional species are regarded as weeds --- alien species known to occur in Alberta (but not known to be invasive), or native species regarded as pests in agricultural settings. Native species can be invasive (e.g. Aspen incursion into grassland) when not limited by historic disturbance regimes, but are not listed here.

in alphabetical order by scientific name
Common Name 'Scientific Name'
velvet-leaf Abutilon theophrasti
Manitoba maple Acer negundo
Norway maple Acer platanoides
yarrow Achillea millefolium var. millefolium
jointed goatgrass Aegilops cylindrica
goutweed Aegopodium podagraria
crested wheatgrass Agropyron pectiniforme (A. cristatum)
quack grass Agropyron repens
creeping bentgrass Agrostis stolonifera
garlic mustard Alliaria petiolata
creeping meadow foxtail Alopecurus arundinaceus
slender foxtail Alopecurus myosuroides
meadow foxtail Alopecurus pratensis
red-root pigweed Amaranthus retroflexus
ragweed Ambrosia artemisiifolia
Amur peppervine Ampelopsis brevipedunculata
yellow chamomile Anthemis tinctoria
wild chervil Anthriscus sylvestris
great burdock Arctium lappa
common Burdock Arctium minus
woolly burdock Arctium tomentosum
European burdock Arctium vulgare
absinth Artemisia absinthium
cicer milkvetch Astragalus cicer
spear Saltbush Atriplex patula
wild Oat Avena fatua
5-horn smotherweed Bassia hyssopifolia
5-hook bassia Bassia hyssopifolia
Japanese barberry Berberis thunbergii
European or common barberry Berberis vulgaris
hoary-alyssum Berteroa incana
smooth brome Bromus inermis var. inermis
Japanese chess Bromus japonicus
cheatgrass Bromus tectorum
flowering-rush Butomus umbellatus
big-seed false flax Camelina sativa
creeping bellflower or Garden Harebell Campanula rapunculoides
shepherd's-purse Capsella bursa-pastoris
caragana or Siberian peashrub Caragana arborescens
whitetop or hoary cress Cardaria
plumeless thistle Carduus acanthoides
nodding thistle Carduus nutans
caraway Carum carvi
Safflower Carthamnus tinctorius
Japanese bittersweet Celastrus orbiculatus (C. orbiculata)
diffuse knapweed Centaurea diffusa
brown knapweed Centaurea jacea
spotted knapweed Centaurea stoebe micranthos
meadow knapweed Centaurea x moncktonii
mountain knapweed Centaurea montana
black knapweed Centaurea nigra
Tyrol knapweed Centaurea nigrescens
bighead knapweed Centaurea macrocephala
hybrid knapweed Centaurea x psammogena
Russian knapweed Centaurea repens (Acroptilon repens)
yellow starthistle Centaurea solstitialis
spotted knapweed Centaurea stoebe ssp. micranthos
squarrose knapweed Centaurea virgata ssp. squarrosa
chickweed Cerastium vulgatum (C. fontanum ssp. vulgare)
celandine Chelidonium majus
lamb's-quarters Chenopodium album
rush skeletonweed Chondrilla juncea
creeping thistle Cirsium arvense
marsh thistle Cirsium palustre
bull thistle Cirsium vulgare
yellow clematis Clematis tangutica
evergreen clematis Clematis vitalba
hemlock Conium maculatum
field bindweed Convolvulus arvensis
crown vetch Coronilla varia
Peking cotoneaster Cotoneaster acutifolia (C. acutifolius)
red-fruited cotoneaster Cotoneaster integerrimus
dark-seed cotoneaster Cotoneaster niger (C. melanocarpa)
annual hawksbeard Crepis tectorum
common crupina Crupina vulgaris
dodder Cuscuta spp.
hound's-tongue Cynoglossum officinale
yellow nutsedge Cyperus esculentus
Scotch broom Cytisus scoparius
orchardgrass Dactylis glomerata
jimson weed, Chinese thorn-apple Datura sp.
flixweed or tansy mustard Descurainia sophia
fuller's or common teasel Dipsacus fullonum
fetid marigold Dyssodia papposa
barnyard grass Echinochloa crusgalli
wild cucumber Echinocystis lobata
globe thistle Echinops sp.
blue devil Echium vulgare
Russian olive Elaeagnus angustifolia
autumn olive Elaeagnus umbellata
California filaree Erodium cicutarium
dog mustard Erucastrum gallicum
sea holly Eryngium planum
wormseed mustard Erysimum cheiranthoides ssp. cherianthoides
cypress spurge Euphorbia cyparissias
leafy spurge Euphorbia esula
myrtle spurge Euphorbia myrsinites
Tartary buckwheat Fagopyrum tataricum
hybrid Japanese knotweed Fallopia x bohemica
Japanese bamboo, J. knotweed Fallopia japonica (Polygonum cuspidatum)
giant knotweed Fallopia sachalinensis
creeping red fescue Festuca rubra
green ash Fraxinus pennsylvanica
hemp nettle Galeopsis tetrahit
cleavers Galium aparine
sweet woodruff Galium odoratum
false cleavers Galium spurium
Yellow bedstraw Galium verum
yellow gentian Gentiana lutea
great manna grass Glyceria grandis (G. maxima)
baby's-breath Gypsophila paniculata
saltlover Halogeton glomeratus
giant hogweed Heracleum mantegazzianum
dame's rocket Hesperis matronalis
orange hawkweed Hieracium aurantiacum
meadow hawkweed Hieracium caespitosum
mouse-ear hawkweed Hieracium pilosella
tall hawkweed Hieracium piloselloides
sea buckthorn Hippophae rhamnoides
waterthyme, hydrilla Hydrilla verticillata
European frog's-bit Hydrocharis morsus-ranae
black henbane Hyoscyamus niger
klamath weed Hypericum perforatum
Himalayan balsam Impatiens glandulifera
yellow flag Iris pseudacorus
dyer's woad Isatis tinctoria
tansy ragwort Jacobaea vulgaris
field scabious or blue buttons Knautia arvensis
summer cypress or burning bush Kochia scoparia
henbit or dead nettle Lamium amplexicaule
blue-bur Lappula squarrosa (L.echinata)
globe-podded hoary cress Lepidium appelianum
lens-podded hoary cress Lepidium chalepense
perennial peppergrass Lepidium latifolium
Chinese bush-clover Lespedeza cuneata
heart-podded hoary cress Lepidium draba
ox-eye daisy Leucanthemum vulgare
Dalmatian toadflax Linaria dalmatica
toadflax Linaria vulgaris
Persian darnel Lolium persicum
Tatarian honeysuckle Lonicera tatarica
Maltese cross Lychnis chalcedonica
purple loosestrife, including Morden Pink Lythrum salicaria
running cheeseweed Malva rotundifolia
high mallow Malva sylvestris
scentless chamomile Matricaria perforata (Tripleurospermum perforata)
black medick Medicago lupulina
alfalfa Medicago sativa
white sweetclover Melilotus alba
yellow sweetclover Melilotus officinale
Eurasian water-milfoil Myriophyllum spicatum var. muricatum
watercress Nasturtium officinale
catnip Nepeta cataria
ball mustard Neslia paniculata
red bartsia Odontites serotina
sainfoin Onobrychis viciifolia
blindeyes Papaver dubium
corn poppy Papaver rhoeas
parsnip Pastinica sativa
African rue Peganum harmala
reed canary grass Phalaris arundinacea
timothy Phleum pratense
common reed Phragmites australis (P. communis)
Norway spruce Picea abies
Burnet-saxifrage Pimpinella saxifraga
Scotch pine Pinus sylvestris
common plantain or whiteman's foot Plantago major
Canada bluegrass Poa compressa
Kentucky bluegrass Poa pratensis
common or yard knotweed Polygonum arenastrum
Wild Buckwheat Polygonum convolvulus
tearthumb or mile-a-minute vine Polygonum perfoliatum
lady's-thumb Polygonum persicaria
white poplar Populus alba
curly pondweed Potamogeton crispus
sulphur cinquefoil Potentilla recta
tall buttercup Ranunculus acris
creeping buttercup Ranunculus repens
wild radish Raphanus raphanistrum
common buckthorn Rhamnus cathartica
glossy buckthorn Rhamnus frangula (Frangula alnus)
Russian knapweed Rhaponticum repens
curled dock Rumex crispus
yard dock Rumex longifolius (R. domesticus)
tumbleweed Salsola collina
Russian tumbleweed Salsola pestifer (S. tragus)
elderberry Sambucus racemosa var. pubens
cowcockle Saponaria vaccaria (Vaccaria hispanica)
tall fescue Schedonorus phoenix
knawel Scleranthus annuus
tansy ragwort Senecio jacobaea
green foxtail Setaria viridis
white campion Silene alba (S. latifolia ssp. alba)
Maltese cross Silene chalcedonica
Balkan catchfly Silene cserei
bladder campion Silene cucubalus
night-flowering catchfly Silene noctiflora
milk thistle Silybum marianum
corn mustard Sinapis arvensis
tumbling mustard Sisymbrium altissimum
tallhedge or small tumbleweed mustard Sisymbrium loeselii
perennial sow thistle Sonchus arvensis
spiny sow thistle Sonchus asper
annual sow thistle Sonchus oleraceus
perennial sow thistle Sonchus arvensis ssp. uliginosus
European mountain ash Sorbus aucuparia
aleppo grass Sorghum halepense
aorn spurry Spergula arvensis
common chickweed Stellaria media
Japanese lilac Syringa reticulata
lilac Syringa vulgaris
medusahead Taeniatherum caput-medusae
5-stamen tamarisk Tamarix chinensis
smallflower tamarisk Tamarix parviflora
saltcedar or tamarisk Tamarix ramosissima
tansy Tanacetum vulgare
thesium Thesium arvense
dandelion Taraxacum officinale
stinkweed Thlaspi arvense
goat's-beard Tragopogon dubius
puncturevine Tribulus terrestris
Alsike clover Trifolium hybridum
red Clover Trifolium pratense
white Clover Trifolium repens
clovers Trifolium sp.
scentless chamomile Tripleurospermum perforatum
cattails Typha species
Siberian elm Ulmus pumila
mullein Verbascum thapsus
European highbush cranberry Viburnum opulus, but not ssp. trilobum
one-sided vetch Vicia cracca
rattail fescue Vulpia myuros (Festuca myuros)

Subregional Aliens

External Sources and Links

User Talk