Gallery
* Notes: Common names for CFIA weed images from Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds (click here)
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Asclepias tuberosa
Apocynaceae
Asclepias tuberosa
Apocynaceae
Butterflyweed (Asclepias tuberosa) seed
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Asclepias tuberosa
Apocynaceae
Asclepias tuberosa
Apocynaceae
Butterflyweed (Asclepias tuberosa) seed
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Asclepias tuberosa
Apocynaceae
Asclepias tuberosa
Apocynaceae
Butterflyweed (Asclepias tuberosa) follicle and seeds
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Catharanthus roseus
Apocynaceae
Catharanthus roseus
Apocynaceae
Catharanthus roseus seeds
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Catharanthus roseus
Apocynaceae
Catharanthus roseus
Apocynaceae
Catharanthus roseus seed
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Catharanthus roseus
Apocynaceae
Catharanthus roseus
Apocynaceae
Catharanthus roseus seed
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Catharanthus roseus
Apocynaceae
Catharanthus roseus
Apocynaceae
Catharanthus roseus seed
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Vincetoxicum fuscatum
Apocynaceae
Vincetoxicum fuscatum
Apocynaceae
Vincetoxicum fuscatum seeds
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Vincetoxicum fuscatum
Apocynaceae
Vincetoxicum fuscatum
Apocynaceae
Vincetoxicum fuscatum seed
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Vincetoxicum fuscatum
Apocynaceae
Vincetoxicum fuscatum
Apocynaceae
Vincetoxicum fuscatum seed
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Vincetoxicum rossicum
Apocynaceae
Vincetoxicum rossicum
Apocynaceae
Vincetoxicum rossicum seeds
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Vincetoxicum rossicum
Apocynaceae
Vincetoxicum rossicum
Apocynaceae
Vincetoxicum rossicum seed
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Vincetoxicum rossicum
Apocynaceae
Vincetoxicum rossicum
Apocynaceae
Vincetoxicum rossicum seed
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Acanthospermum hispidum
Asteraceae
Acanthospermum hispidum
Asteraceae
Hispid starbur (Acanthospermum hispidum) achenes
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Acanthospermum hispidum
Asteraceae
Acanthospermum hispidum
Asteraceae
Hispid starbur (Acanthospermum hispidum) achenes
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Acanthospermum hispidum
Asteraceae
Acanthospermum hispidum
Asteraceae
Hispid starbur (Acanthospermum hispidum) achene
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Acanthospermum humile
Asteraceae
Acanthospermum humile
Asteraceae
Low starbur (Acanthospermum humile) achenes
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Acanthospermum humile
Asteraceae
Acanthospermum humile
Asteraceae
Low starbur (Acanthospermum humile) achene
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Achillea millefolium
Asteraceae
Achillea millefolium
Asteraceae
Common yarrow (Achillea millefolium) achenes
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Achillea millefolium
Asteraceae
Achillea millefolium
Asteraceae
Common yarrow (Achillea millefolium) achenes
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Achillea millefolium
Asteraceae
Achillea millefolium
Asteraceae
Common yarrow (Achillea millefolium) achene
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Achillea santolina
Asteraceae
Achillea santolina
Asteraceae
Achillea santolina achenes
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Achillea santolina
Asteraceae
Achillea santolina
Asteraceae
Achillea santolina achene
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Achillea santolina
Asteraceae
Achillea santolina
Asteraceae
Achillea santolina achene
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Achillea santolina
Asteraceae
Achillea santolina
Asteraceae
Achillea santolina achene
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Achillea santolina
Asteraceae
Achillea santolina
Asteraceae
Achillea santolina bottom of achene
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Ambrosia artemisiifolia
Asteraceae
Ambrosia artemisiifolia
Asteraceae
Common ragweed (Ambrosia artemisiifolia) burs and one seed
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Ambrosia artemisiifolia
Asteraceae
Ambrosia artemisiifolia
Asteraceae
Common ragweed (Ambrosia artemisiifolia) burs
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Ambrosia artemisiifolia
Asteraceae
Ambrosia artemisiifolia
Asteraceae
Common ragweed (Ambrosia artemisiifolia) bur
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Ambrosia artemisiifolia
Asteraceae
Ambrosia artemisiifolia
Asteraceae
Common ragweed (Ambrosia artemisiifolia) burs
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Ambrosia psilostachya
Asteraceae
Ambrosia psilostachya
Asteraceae
Perennial ragweed (Ambrosia psilostachya) burs
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Ambrosia psilostachya
Asteraceae
Ambrosia psilostachya
Asteraceae
Perennial ragweed (Ambrosia psilostachya) burs
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Ambrosia psilostachya
Asteraceae
Ambrosia psilostachya
Asteraceae
Perennial ragweed (Ambrosia psilostachya) bur
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Ambrosia psilostachya
Asteraceae
Ambrosia psilostachya
Asteraceae
Perennial ragweed (Ambrosia psilostachya) bur wall partially removed showing achene
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Ambrosia trifida
Asteraceae
Ambrosia trifida
Asteraceae
Giant ragweed (Ambrosia trifida) burs
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Ambrosia trifida
Asteraceae
Ambrosia trifida
Asteraceae
Giant ragweed (Ambrosia trifida) burs
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Ambrosia trifida
Asteraceae
Ambrosia trifida
Asteraceae
Giant ragweed (Ambrosia trifida) bur
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Ambrosia trifida
Asteraceae
Ambrosia trifida
Asteraceae
Giant ragweed (Ambrosia trifida) bur
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Ambrosia trifida
Asteraceae
Ambrosia trifida
Asteraceae
Giant ragweed (Ambrosia trifida) burs
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Ambrosia trifida
Asteraceae
Ambrosia trifida
Asteraceae
Giant ragweed (Ambrosia trifida) bur, longitudinal section