Native Plants and Invasive Species



A severe allergic reaction that can be life-threatening. Food is the most common cause of anaphylaxis, but insect stings, medicine, latex or exercise can also cause a reaction. The most common food allergens are peanuts, tree nuts, seafood, egg and milk products. Anaphylactic shock is characterized by swelling, difficulty breathing, abdominal cramps, vomiting, diarrhea, circulatory collapse, coma and death.
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Derived from "bio" which means "life" and diversity meaning "variety." Biodiversity is the variety of all life on earth. Variety is considered in terms of three levels: genetics, species and ecosystems. Biodiversity is a good indicator of ecosystem health.


The Cordillera is a region where earthquakes and recently active volcanoes show that mountain-building is continuing.

Canadian Cordillera – The name for the mountains of Western Canada.


A part of an ecoregion characterized by distinctive assemblages of relief, geology, landforms and soils, vegetation, water, fauna and land use.


A part of a province characterized by distinctive regional ecological factors, including climate, physiography, vegetation, soil, water, fauna and land use.


An area of the earth's surface representative of large and very generalized ecological units characterized by interactive and adjusting abiotic and biotic factors.


Refers to plants that are not native to an area. These plants may be from another country or from another part of Canada, e.g. Mahonia is from BC but grows in Ontario.


A chemical given off by the roots, leaves and nuts of black walnuts and other members of the walnut family (Juglandaceae) such as the butternuts and hickories. There are a number of plants that are very sensitive to this toxin and will not grow in its presence. Removing the tree will not eliminate the juglone since the decaying roots will continue to give it off for years.


Refers to species that originated from outside a region and were originally cultivated, but have escaped and are now thriving in the wild.


A Russian word that refers to the northern edge of the boreal coniferous forest, that “land of little sticks” which spans from the subarctic of Labrador to Alaska and beyond; from Siberia to Scandinavia.