•Plankton•Filamentous•Stonewort

Plankton algae• Microscopic• Floating• Colors the water when present in

large numbers (green, brown, yellow or red)

• Not flowering• Population explosion= ALGAL

BLOOM

• Cells are arranged in long strands• Fur like covering on rocks in streams• Floating mat = POND SCUM

• Found on the bottom of ponds or lakes with limestone soil

• Identified by a central stem with whorls of branches, no roots, no flowers

• Can grow 2 or 3 feet• Appearance and odor=

MUSKGRASS

•Emerging•Submerged•Floating

• Grow in shallow water• Most of the stem, leaves and flowers grow above the water’s surface

• Grow in deep water• Usually rooted in a muddy bottom• Only the flower rises above the

water’s surface• These plants grow entirely below

the water’s surface (except the flower)

• Have floating leaves and flowers sometimes only slightly on the surface