Appendix 4- Plants Excluded from the United States Greenhouse Certification Program (USGCP) for Export to Canada

• 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.