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Information on Invasive Shrub and Vine Species

 

Berberis thunbergii  
Common Name(s) : Japanese barberry  
Origin : Asia  
Status : Available  
Provincial Location : ON, QC, NS, PEI  
Habitat : Areas prone to browsing by deer  
Description: 4-6 feet high, flowers yellow in drooping clusters, many stemmed, green or red leaves, 2 inches long, fruits oblong and bright red  
Invasive Potential : P  
Usage : Ornamental  
Control Methods : 2, 3  
Additional Comments : Spread by birds, introduced 1806  
 

Caragana arborescens  
Common Name(s): Siberian peashrub  
Origin : Europe  
Status :  
Provincial Location(s) : AB, MB, ON, QC  
Habitat :  
Description :  
Usage :  Ornamental 
Invasive Potential : P  
Control Method(s) : 1, 2  

Celastrus orbiculatus 
Common Name(s) : Asiatic bittersweet, Oriental bittersweet  
Origin : Eurasia  
Status : Available  
Provincial Location :  
Habitat : Woods, thickets, roadsides, fence rows  
Description: 7 m high, flowers in small greenish yellow clusters, leaves alternate, simple, deciduous, rounded, fruits small orange-yellow  
Invasive Potential : H  
Usage : Ornamental  
Control Methods : 2, 3  
Additional Comments : Spread by birds  
 

Cynanchum nigrum 
Common Name(s) : Dog-strangling vine, Black swallowort  
Origin : Europe  
Status : Available  
Provincial Location : BC, ON, QC  
Habitat : Old fields, pastures, fence rows, waste places  
Description: Perennial, 5-15 dm high, 5 lobed purple flowers, stems twining, leaves opposite, simple, petioled, 8 cm long  
Invasive Potential : H  
Usage :  
Control Methods : 1, 2  
 

Ligustrum vulgare  
Common Name(s) : Common privet  
Origin :  
Status : Available  
Provincial Location :  
Habitat :  
Description: White flowers in clusters, leaves opposite, simple, berry like fruits  
Invasive Potential : P  
Usage : Ornamental  
Control Methods : 2, 3  
 

Lonicera japonica  
Common Name(s) : Japanese honeysuckle  
Origin : Asia  
Status : Available  
Provincial Location : ON  
Habitat : Open woods, thickets, roadsides, old gardens  
Description: 3 m high, flowers in pairs, yellow or white, tubular, leaves hairy, opposite, simple, entire, purplish-black berries  
Invasive Potential : L  
Usage : Ornamental  
Control Methods : 2, 3  
Additional Comments : Leaves remain in winter  
 

Lonicera tatarica  
Common Name(s) : Tartarian honeysuckle  
Origin : Asia  
Status : Available  
Provincial Location : NF, NB, NS, PEI  
Habitat : Open woods, thickets, lake shores, roadsides, wasteland  
Description: 3 m high, numerous flowers, pink or white on stalks, leaves opposite, simple, deciduous, blades 2-6 cm long, thin, fruits in pairs, red, orange or yellow   
Invasive Potential : L  
Usage : Ornamental  
Control Methods :  
Additional Comments : Displaces native understorey and ground flora  
 

Rosa eglanteria  
Common Name(s) : Sweetbriar, Eglantine, Sweetleaf rose  
Origin : Europe  
Status : Available  
Provincial Location : ON  
Habitat : Fields, old gardens  
Description: Perennial, 1 m high, sweet scented, 5 lobed pink flowers, Prickles, leaves alternate, pinnate, resinous on lower surface, fruit yellow to red fleshy rose hip  
Invasive Potential : L  
Usage : Ornamental  
Control Methods : 1, 2  
 

Rosa multiflora  
Common Name(s) : Multiflowered rose  
Origin : Eurasia  
Status : Available  
Provincial Location : ON  
Habitat : Woodlands, old gardens  
Description: Perennial, 1 m high, 5 lobed flowers, pink, red, yellow or white, prickles, leaves alternate, pinnate, compound, deciduous, fruit yellow to red fleshy rose hip  
Invasive Potential : L  
Usage : Ornamental  
Control Methods : 1, 2  
Additional Comments : Displaces native species, spread by birds  
 

Rosa rugosa   
Common Name(s) : Japanese rose, Wrinkled rose  
Origin : Eurasia  
Status : Available  
Provincial Location :  
Habitat : Fields, old gardens  
Description: Perennial, 2.5 m high, flowers dark red or white, 5 petals, 5-9 large leaflets, hairy underneath, thorny, large orange scarlet rose hip fruit  
Invasive Potential : L  
Usage : Ornamental  
Control Methods : 1, 2  
Additional Comments : Introduced 1845  
 

Rubus discolor  
Common Name(s) : Himalayan blackberry  
Origin : Eurasia  
Status :  
Provincial Location : BC  
Habitat : Old woods, shady areas  
Description: Perennial, 1-1.5 m, loose, delicate white flowers, long canes, prickly stem, fruits aggregation of drupes, black  
Invasive Potential : P  
Usage : Ornamental  
Control Methods : 1, 2  
Additional Comments : Forms dense thickets  
 

Syringa vulgaris  
Common Name(s) : Lilac  
Origin : Europe  
Status : Available  
Provincial Location : SK, ON, QC, NF, NB, NS  
Habitat : Old homesteads  
Description: 5 m high, flowers purple, pink or white in clusters, fragrant, leaves deciduous, simple, opposite, 5-12 cm long, heart-shaped, pointed, smooth  
Invasive Potential : L  
Usage : Ornamental  
Control Methods : 4, 6   
 

Viburnum lantana  
Common Name(s): Wayfaring tree  
Origin : Europe  
Status : Available  
Provincial Location(s): ON  
Habitat : Moist forests  
Description : 2 m high, 13 cm flowers, umbrella-shaped, white, leaves olive green, opposite, simple, deciduous in pairs, clusters of black fruit  
Invasive Potential : P  
Usage : Ornamental  
Control Methods : 4, 6  
 

Viburnum opulus  
Common Name(s) : Guelder rose, European highbush cranberry  
Origin : Eurasia  
Status : Available  
Provincial Location : BC, SK, AB, MB, ON, QC, NF  
Habitat : Swamps and bogs, along streams, open woods, thickets  
Description: 5 m high, yellow or white flowers, leaves opposite, 3 lobed, bright red berries  
Invasive Potential : L  
Usage : Ornamental  
Control Methods : 4, 6  
Additional Comments : Shunned by wildlife, unpleasant taste 

 
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