Appendix 4- Plants Excluded from the United States Greenhouse Certification Program (USGCP) for Export to Canada
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- Abies spp.
- Acer spp.
- Aesculus spp.
- Ajania spp.
- Allium spp.
- Arbutus spp.
- Arctostaphylos spp.
- Berberis spp.
- Capiscum spp.
- Castanea spp.
- Chaenomeles spp.
- Chrysanthemum spp.Footnote1
- Corylus spp.
- Crataegus spp.
- Cydonia spp.
- Dendranthema spp.Footnote1
- Elodea densa
- Gaylussacia spp.
- Heteromeles spp.
- Hydrilla verticillata
- Juniperus spp.
- Larix spp.
- Leucanthemum spp.Footnote1
- Lithocarpus spp.
- Lycopersicon spp.
- Mahonia spp.
- Mahoberberis spp.
- Malus spp.
- Myriophyllum spp.
- Nicotiania tabacum
- Nippoanthemum spp.Footnote1
- Picea spp.
- Pinus spp.
- Prunus spp.
- Pseudotsuga spp.
- Pyrus spp.
- Quercus spp.
- Rhamnus spp.
- Rhododendron spp.Footnote2
- Rhus spp.
- Rubus spp.
- Sequoia spp.
- Solanum spp.
- Trapa spp.
- Trientalis spp.
- Ulmus spp.
- Umbellularia spp.
- Vaccinium spp.
- Viburnum spp.
- Vitis spp.
- Zelkova spp.
Note: Genera and species listed above are prohibited entry into Canada, or are subject to specific phytosanitary certification requirements.
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