INVASIVE SPECIES - LATEST
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.
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 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.