Posters
Take a look at informative posters and presentations about seed identification and species comparisons!
These posters detailing weed seed, crop species and disease body identification were created for various educational events, and are now available for ISMA members. To view a particular poster, select the link below, arranged alphabetically.
Please note that these posters are copyrighted material and are to be used only for educational/ non-commercial purposes. Other uses without permission are prohibited.
Family |
Poster Link |
Description |
Authors |
Amaranthaceae |
Identification of Seeds of Amaranthus Species and Species Groups (presented 2018)
|
Categorizes and describes seed features that can be used for examination of amaranth or pigweed (Amaranthus spp.) seed impurities. |
J. Neudorf, R. Wang, A. Salzl and T. Meyer Credit: 2019 Canadian Food Inspection Agency |
Asteraceae |
|
Describes achene features of four species of knapweed and star thistle (Centaurea spp.) that are regulated in Canada, including similar looking species. |
J. Neudorf, J. Hinke and R. Wang Credit: 2019 Canadian Food Inspection Agency |
Asteraceae |
Seed Identification of Noxious Senecio Species (presented 2023)
|
Describes achene features, invasion and natural history of two noxious Senecio species and compares them to achenes of four similar species. |
J. Neudorf, A. Salzl and R. Wang Credit: 2023 Canadian Food Inspection Agency |
Brassicaceae |
|
Details and compares seed features of small seeded weedy species in the mustard family (Brassicaceae). |
J. Neudorf and R. Wang Credit: 2019 Canadian Food Inspection Agency |
Convolvulaceae |
Recognizing Dodder (Cuscuta spp.) Seeds and Associated Parts (presented 2016)
|
Illustrates the external and internal features of dodder (Cuscuta spp.) seeds, along with dodder fruit and immature seeds. |
J. Neudorf and R. Wang Credit: 2019 Canadian Food Inspection Agency |
Ergot and Sclerotia |
Identification of Disease Bodies: Ergot and Sclerotia (updated 2021)
|
An introduction to the identifying features of ergot disease bodies and sclerotia for the purity analyst. |
Dr. R. Wang Credit: 2021 Canadian Food Inspection Agency |
|
Fabaceae |
|
Compares and contrasts the identifying features of three crop kinds in the clover family (Fabaceae). |
J. Neudorf and R. Wang Credit: 2019 Canadian Food Inspection Agency |
|
Fabaceae |
Seed Identification of Cultivated and Wild Vetches (Vicia spp.) (presented 2024)
|
Illustration and description of seed features useful for separating Vicia species listed on the AOSA exam and the CFIA Minimum List, and some common wild species in Canada and the United States. |
A. Salzl, J. Neudorf and R. Wang Credit: 2024 Canadian Food Inspection Agency |
Poaceae |
|
Details the features used to distinguish wild oat (Avena sativa) and false wild oat (Avena sativa mut. fatuoid) florets. |
J. Neudorf and R. Wang Credit: 2019 Canadian Food Inspection Agency |
Poaceae |
Secondary Noxious Brome Species in Canadian Weed Seeds Order (2016) (presented 2017)
|
Describes and compares the floret features of four species of brome (Bromus spp.) that are regulated in Canada. |
J. Neudorf, A. Salzl and R. Wang Credit: 2019 Canadian Food Inspection Agency |
|
Poaceae |
|
Summarizes the distinguishing features of the similar looking florets of western wheatgrass (Pascopyrum smithii) and couchgrass (Elymus repens). |
J. Neudorf, S. Putz and R. Wang Credit: 2019 Canadian Food Inspection Agency |
Poaceae |
|
Describes and compares the spikelet features used to distinguish four species of foxtail (Setaria spp.) that may be encountered as seed impurities. |
J. Neudorf and R. Wang Credit: 2019 Canadian Food Inspection Agency |
Poaceae |
Taxonomy and Identification of Seeds of Sorghum Species and Sub-species (presented 2019)
|
Describes the taxonomy, nomenclature and history of domesticated sorghum, hybrids, wild species and weed species (Sorghum spp.). |
J. Neudorf, A. Salzl and R. Wang Credit: 2019 Canadian Food Inspection Agency |
Poaceae |
History and Identification of Cultivated Echinochloa Species (presented 2022)
|
Describes the history of cultivated Echinochloa species, their wild ancestors and distinguishing features of the spikelets and florets. |
J. Neudorf, R. Wang, A. Salzl and T. Meyer Credit: 2022 Canadian Food Inspection Agency |
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