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INVASIVE SPECIES - A-Z
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Black Locust
Robinia pseudoacacia
Black locusts threaten prairies, savannahs and upland forests. They have an extensive root system that allows them to reproduce clonally, sprouting many clones in one area. As they grow, they'll form islands of dense canopy which shade out any plants below them.
Bloody Red Shrimp
Hemimysis anomala
The bloody red shrimp are translucent ivory-yellow in color, and exhibit bright red to reddish-orange coloring around the head and tail. The threat to the Great Lakes is currently not well understood.
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.
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.
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
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
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
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
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.