INVASIVE SPECIES - Z-A
Yellow floating heart is an herbaceous perennial that has stout, branching stems. The heart-shaped, almost circular, leaves are usually oppositely arranged and frequently purplish underneath. Bright yellow flowers have 5 petals and distinctively fringed edges. It spreads both vegetatively and by seeds.
Wild parsnip is a biennial herb that grows to 2-5 ft. Alternate, compound, branched leaves have serrated edges. First year rosettes have pinnately compound leaves. Adult plants bloom June through August with small, five-petaled, yellow flowers arranged in a flat-topped, broad umbel of 2-6".
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.
Water hyacinth is a free-floating, perennial, aquatic plant. In climates where it is unable to survive the winter, water hyacinth will grow as an annual. Its leaves are round, curved, glossy bright green and float above the water’s surface on bulbous stalks.