0 Gardening And WEEDS: Invasive Alien Plants: Alien Plants Native or alien plants The Other “CFAs” that grow in naturally Gardening is an disturbed or human (Come From Aways) enriching, rewarding disturbed habitats, and healthy pastime and including roadsides, Of the 4,000 species of plants growing in Canada, MUN Botanical Garden gardens, and burned about 800 are non-native or alien. Over 35 per cent encourages everyone to forests. of plant species in Newfoundland and Labrador are participate in gardening – but aliens. Some were introduced accidentally while with care and caution. Most of the MUN Botanical Garden Inc. others were intentionally introduced; some have plants that we use in our ﬂower beds are alien Memorial University of Newfoundland been here for centuries while others are new to Newfoundland and Labrador. Most of these St. John’s, NL A1C 5S7 arrivals. And while many are quietly living amongst plants are well-behaved guests in our province, Phone: (709) 737-8590 us, some have become invasive, causing serious but throughout Canada some garden plants Fax: (709) 737-8596 environmental damage. are escaping and invading natural habitats, www.mun.ca/botgarden causing havoc on native vegetation and reducing firstname.lastname@example.org The extent of the problems caused by invasive biodiversity. While our cooler climate and shorter alien plants in Newfoundland and Labrador is growing season results in comparatively fewer not as extreme as in other parts of Canada or the invasive species, we do need to be cautious. Everyone must share the responsibility in Invasive Alien Plants world. However, action must be taken to prevent the loss of biodiversity. The introduction of invasive in Newfoundland 0 alien species must be stopped and current problem protecting the natural beauty and diversity species must be managed. Department of Environment and Conservation of this province. Join MUN Botanical Garden GARDEN BRUTES: and Labrador: 0 as we endeavour to Plants that grow prevent the spread of aggressively in invasive alien plants in Newfoundland and garden settings, but will not thrive The Other “CFAs” INVASIVE ALIEN SPECIES: Labrador. beyond these ideal Alien organisms which successfully establish, 00 situations. thrive and overtake natural ecosystems – often competing with native organisms and destroying native habitat. 0 BIODIVERSITY: ALIEN SPECIES: The variety of life (introduced, non-native, 0 within a specified area. Acknowledgements exotic, non-indigenous) Project funding provided by Invasive Alien Species NATIVE (INDIGENOUS) Partnership Program, Environment Canada. Plants, animals and SPECIES: Photos provided by John E. Maunder, Todd Boland NATURALIZED PLANTS: micro-organisms and Tim Walsh. Originally from the area. Alien plants which existing in habitats 050-041-03-07-1,000 establish and reproduce beyond their natural in natural or disturbed distribution. Their St. John’s Yellow iris habitats without human introduction is usually wort intervention, but will caused by humans or not interfere with the human activities but natural ecosystem. most do not become invasive. Did You Know? Characteristics Of Plants To Keep A “Watchful This is a global problem. Next to habitat Invasive Alien Plants: Eye” On In This Province: destruction, invasive alien species are the greatest threat to the loss of global biodiversity. 0 Ability to establish in natural areas 0 Black knapweed 0 St. John’s wort How Do Invasive Alien 0 Easily pollinated by wind or insects 0 Cattail 0 Wild chervil Species Spread? This is a national problem. The Federal 0 Government recognizes the need for prevention, High seed production 0 Canada thistle 0 Common reed Alien species are rarely discovered until they are early detection, rapid response, and management 0 Seeds can germinate in many types of habitats 0 Japanese knotweed 0 Coltsfoot invasive and spread, and then it is often difﬁcult of invasive alien species. to trace the path of introduction. 0 Seeds live a long time 0 Goutweed 0 Yellow Iris 0 This is a provincial problem. Natural communities 0 Mature and set seed rapidly 0 Human activities and disturbances, such as on islands are particularly vulnerable to invasive Purple loosestrife 0 Sea buckthorn logging, agriculture and urbanization help alien species. 0 Seeds can travel long distances spread alien plant species. 0 Can reproduce by seed and/or vegetatively 0 Birds and other animals also help to spread the Should We Be Concerned 0 Competes with native plants for sunlight, seeds of alien plant species. About Invasive Alien nutrients, space, etc. Some alien plant species were purposely Species in Newfoundland introduced as ornamentals, for culinary and and Labrador? medicinal use, or for revegetation projects. Things You Can Do To Prevent An “Invasion” YES OF COURSE! Some alien plant species were accidentally Learn about new plant species before you grow Remove any garden plants that have spread from introduced as packaging material, and Development of our highways and power lines them. Many are sterile and will not be a problem. your property. contaminants in seed crops, livestock feed and create disturbance corridors, assisting in the Others are not hardy in our winters and won’t be a soils. spread of alien species. problem. Never bring seeds or plants into Canada without having them inspected. Extensive world-wide exchange of goods and Some potentially invasive plant species are Ask about alternative native plants at your local widespread travel have made the arrival of already present in this province and may nurseries. Contribute to local efforts to manage invasive alien invasive alien plants more probable. continue to spread. plants. Become a volunteer to monitor the Properly compost garden waste. Seeds, sods and expansion of alien plants in your region. Not only plants, but introduced animals are clippings can easily establish themselves when also causing havoc on the regeneration of dumped in natural habitats. Visit www.mun.ca/botgarden to report any invasive our forests. alien plant species. The spread of the human population will make it easier for potentially invasive alien species to increase their range. Meet Your “Canadian Bandits”: Scotch broom (Cytisus scoparius) Scotch broom successfully into forest edges threatening the interferes with forest regeneration and affects biodiversity of forest understory. Wild chervil Canada thistle endangered native plant species in British Columbia. English ivy (Hedera helix) English ivy grows on Norway maple (Acer platanoides) Norway maple almost anything, including other trees and plants. is considered one of the most invasive species in The added weight can make the plants susceptible Southern Ontario and Quebec. It can naturalize to damage. It is a problematic plant in British Columbia and Ontario.
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