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INVASIVE SPECIES - LATEST
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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.
Sea Lamprey
Petromyzon marinus
The sea lamprey is an aggressive parasitic fish that resembles an eel. This species has two dorsal fins, no paired fins, seven gill openings, and a very distinctive disk-shaped mouth with sharp, curved teeth and a rasping tongue. Their scaleless body is a mottled gray to black color that fades to a silver-white coloration on the underside. Adult sea lampreys are generally 12-20 inches in length.
English Ivy
Hedera helix
English ivy is an evergreen perennial vine that can grow to reach lengths of 90 feet with proper support or form a dense, trailing mat.
Black Jetbead
Rhodotypos scandens
Black jetbead is a deciduous shrub that can grow up to 5 feet tall. It has bright green leaves that are opposite and doubly serrate with a rough leaf surface. It forms a dense shrub layer that shades out native species.
Himalayan Balsam
Impatiens glandulifera
Himalayan balsam is an annual herb that produces irregularly shaped, pink to purple colored flowers. It thrives in lowlands, riparian zones, wetlands and disturbed areas.
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.
Wavyleaf Basketgrass
Oplismenus hirtellus subsp. undulatifolius
Wavyleaf basketgrass is a perennial grass with a distinctly hairy stem and leaf sheath. The deep green leaves are characteristically wavy and grow to about 1 inch wide and up to 4 inches long. The plant produces small, wispy flowers at the ends of its branches in the fall. Its seeds grow in 3-5 pairs of spikelets with long awns (pointed tips) that produce a sticky substance to aid in dispersal.
Waterwheel
Aldrovanda vesiculosa
Waterwheel is an herbaceous carnivorous, aquatic plant that captures small, aquatic invertebrates using clamshell-type traps, similar to the venus flytrap. It floats just below the water's surface and has stems 2-8 inches long, with whorls of 5-9 leaves. Waterwheel rarely flowers, but when it does, the small, greenish-white flowers emerge from the water, while the fruit capsules are held underwater.
Beech Leaf Disease
Litylenchus crenatae mccannii
Beech leaf disease is a new threat to WNY and poses a serious threat to beech forests. Research is ongoing to learn more about the biology of this disease including its spread vectors.