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Great Lakes Center, SAMC 319
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Border Privet, Lingustrum obtusifolium, fruit, Photo by Lower Hudson PRISM
Border Privet

Border Privet

Ligustrum obtusifolium

Border privet is a deciduous shrub that may grow to be 20 ft. tall. It forms dense thickets, shading out native plants. It also displaces native shrubs and seedlings in regenerating forests.

Photo by Robert Vidéki, Doronicum Kft., Bugwood.org
Brazilian Elodea

Brazilian Elodea

Egeria densa

Brazilian elodea is a submerged perennial that looks similar to american waterweed (Elodea canadensis), a common native aquatic plant. Brazilian elodea has finely-toothed leaves that are bright green, bushy, and are usually arranged in whorls of four around the stem. The plant has round stems that can grow in water up to 20 ft. deep and often branches near the surface. It reproduces via plant fragmentation.

Photo by Graves Lovell, Alabama Department of Conservation and Natural Resources, Bugwood.org
Brittle Naiad

Brittle Naiad

Najas minor

Brittle naiad is an herbaceous annual that grows in dense clusters. Its leaves have visible serrations and are long, pointed and oppositely arranged on highly branched stems. The plant can reproduce from stem fragments, or from small seeds which grow along its stem.

Bull Thistle

Bull Thistle

Cirsium vulgare

A tall biennial that produces a single purple flowerhead atop its stem. Leaves, stem and bracts are all covered in hairs or spines which makes it unpalatable to wildlife and livestock.

Burning Bush

Burning Bush

Euonymus alatus

Burning bush is an invasive ornamental woody shrub that is easily recognized by its vibrant red fall foliage. This invasive species has been introduced into natural landscapes through escaping cultivation.

Bush Honeysuckle

Bush Honeysuckle

Lonicera tartarica, L. morrowii, L. maackii x L. bella

The invasive bush honeysuckles are deciduous shrubs that may grow to be 15 ft. tall. Honeysuckle leaves are opposite, have smooth margins, and can vary in shape, being oval or tapered at the tip.

Canada Thistle

Canada Thistle

Cirsium arvense

Canada thistle is a perennial thistle that grows 1.5-5 ft. tall. Canada thistle displaces native vegetation, lowering plant and animal diversity. It also poses an economic threat to farmers and ranchers, reducing crop yields and pasture productivity.

Carolina Fanwort

Carolina Fanwort

Cabomba caroliniana

Carolina fanwort forms extremely dense stands that clog drainage systems and waterways, interfering with recreational activities. Dense stands also negatively impact native biodiversity.

Chinese Silvergrass, Miscanthus sinensis
Chinese Silver Grass

Chinese Silver Grass

Miscanthus sinensis

Chinese silver grass rapidly spreads in areas that have been disturbed, such as roadsides. It is considered a wildfire hazard because it produces large amounts of highly flammable, dry plant material.