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Flowering Rush

Flowering Rush

Found throughout the northern United States and is present in the FL-PRISM. Invasive Rank

By December 12, 2014 Read More →
Starry Stonewort

Starry Stonewort

Starry stonewort is a rooted macroalgae often found in lakes and rivers and can grow to two meters in length.  This plant is green with star shaped rhizoids that form from late fall though winter.

By October 22, 2014 Read More →
Alewife

Alewife

Alewife is a species of ocean herring with a bluish-grey to olive back with silvery sides. The body is wide, narrows at the belly, and averages 6” in length. They have large eyes, a prominent black spot near the gill cover, and a forked fin.

By February 11, 2014 Read More →
Round Goby

Round Goby

The round goby is a small, soft-bodied fish with a distinctive black spot on the first dorsal fin. They have large, protruding eyes and range in length from 4″ to 10″. While juveniles are grey, adult round gobies have grey, black, brown, and olive green markings.

By February 11, 2014 Read More →
Yellow Floating Heart

Yellow Floating Heart

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 five petals and distinctively fringed edges. It spreads both vegetatively and by seeds.

By February 10, 2014 Read More →
Variable-leaf Watermilfoil

Variable-leaf Watermilfoil

Variable-leaf watermilfoil is a submerged perennial that looks like many native plants, including native milfoil species. It has 4-6 feathery leaves whorled around the stem, but some leaves can be alternating. Leaves are divided into 7-14 pairs of leaflets. Dense leaf arrangement gives this plant a bottle brush appearance. Stems are thick and reddish-brown. In mid to late summer, blade-like, serrated leaves with small, reddish pink flowers form an erect spike that emerges from the water.

By January 30, 2014 Read More →
Quagga Mussel

Quagga Mussel

Quagga mussels are filter-feeding freshwater bivalve mollusks. The quagga mussel is pale toward the end of the hinge and about 3/4″ wide.

By January 6, 2014 Read More →
Asian Clam

Asian Clam

Asian clam is a freshwater bivalve mollusk. The outside shells are yellow-green to brown with elevated concentric rings. If the color chips away, white spots can be seen underneath. The inside of the shells may be light purple. Adults are small, usually less than 1 1/2″ in length.

By January 6, 2014 Read More →
Fishhook Waterflea

Fishhook Waterflea

Fishhook waterfleas are tiny crustaceans less than 1/2″ long with long, sharp, barbed tails. The fishhook waterflea has a slender spine and prominent S-shaped loop on the tail. Fishhook waterfleas collect in gelatinous globs on fishing equipment and lines.

By January 6, 2014 Read More →
Spiny Waterflea

Spiny Waterflea

Spiny waterfleas are tiny crustaceans less than 1/2″ long with long, sharp, barbed tails. Spiny waterfleas collect in gelatinous globs on fishing equipment and lines.

By January 6, 2014 Read More →