Descurainia sophia (L.) WebbFlixweedFlixweedGwen WalkerAnnual or biennial weed. Collected by the Experimental Greenhouses, Provincial Horticulture Station, Brooks, Alberta. Introduced from Europe. Flixweed is one of the most abundant weeds in the prairie provinces
Lappula echinata Gilib.Blue BurFraise bleueGwen WalkerAn introduced weed. Corolla 3-4 mm broad, brig...
Amaranthus retroflexus L.Red-root PigweedAmarante à racine rougeGwen WalkerA course annual, spreadin...
Salsola kali L.Russian ThistleChardon russeGwen WalkerAn introduced annual weed collected from Tille...
Descurainia sophia (L.) WebbFlixweedFlixweedGwen WalkerAnnual or biennial weed. Collected by the Exp...
Descurainia sophia is a winter or spring annual weed. Flixweed used to be described as a ruderal wee...
Descurainia sophia belongs to Brassicaceae family. It is a winter or spring annual weed. Flixweed us...
Senecio vulgaris L.Common GroundselSéneçon vulgaireGwen WalkerAnnual weed collected by the greenhous...
Stellaria media (L.) Cyrill.Common ChickweedMouron des oiseauxGwen WalkerA prostrate-growing annual ...
Lactuca serriola L.Prickly LettuceLaitue piquanteGwen WalkerAnnual or winter annual weed, collected ...
Euphorbia esula L.Leafy SpurgeEuphorbe feuillueGwen WalkerA perennial herb with deep roots and sprea...
Malva pusilla L.Round-leaved MallowMauve à feuilles rondesGwen WalkerAnnual herb collected from a wa...
Arnica fulgens Pursh.ArnicaArnicaGwen Walker, Wayne Brooks, Diane DouglasSpecimens collected from an...
Capsella bursa-pastoris (L.) Medie.Shepherd's PurseBourse de bergerGwen WalkerAnnual or winter annua...
The general ecological characteristics of weeds at the individual and population levels were evalua...
The biology of the weed goat’s-rue, Galega officinalis (Fabaceae), is reviewed. Introduced to Canada...
Lappula echinata Gilib.Blue BurFraise bleueGwen WalkerAn introduced weed. Corolla 3-4 mm broad, brig...
Amaranthus retroflexus L.Red-root PigweedAmarante à racine rougeGwen WalkerA course annual, spreadin...
Salsola kali L.Russian ThistleChardon russeGwen WalkerAn introduced annual weed collected from Tille...
Descurainia sophia (L.) WebbFlixweedFlixweedGwen WalkerAnnual or biennial weed. Collected by the Exp...
Descurainia sophia is a winter or spring annual weed. Flixweed used to be described as a ruderal wee...
Descurainia sophia belongs to Brassicaceae family. It is a winter or spring annual weed. Flixweed us...
Senecio vulgaris L.Common GroundselSéneçon vulgaireGwen WalkerAnnual weed collected by the greenhous...
Stellaria media (L.) Cyrill.Common ChickweedMouron des oiseauxGwen WalkerA prostrate-growing annual ...
Lactuca serriola L.Prickly LettuceLaitue piquanteGwen WalkerAnnual or winter annual weed, collected ...
Euphorbia esula L.Leafy SpurgeEuphorbe feuillueGwen WalkerA perennial herb with deep roots and sprea...
Malva pusilla L.Round-leaved MallowMauve à feuilles rondesGwen WalkerAnnual herb collected from a wa...
Arnica fulgens Pursh.ArnicaArnicaGwen Walker, Wayne Brooks, Diane DouglasSpecimens collected from an...
Capsella bursa-pastoris (L.) Medie.Shepherd's PurseBourse de bergerGwen WalkerAnnual or winter annua...
The general ecological characteristics of weeds at the individual and population levels were evalua...
The biology of the weed goat’s-rue, Galega officinalis (Fabaceae), is reviewed. Introduced to Canada...
Lappula echinata Gilib.Blue BurFraise bleueGwen WalkerAn introduced weed. Corolla 3-4 mm broad, brig...
Amaranthus retroflexus L.Red-root PigweedAmarante à racine rougeGwen WalkerA course annual, spreadin...
Salsola kali L.Russian ThistleChardon russeGwen WalkerAn introduced annual weed collected from Tille...