Minnesota Aquatic Plants (Minnesota DNR)

http://www.dnr.state.mn.us/nr/plants/aquatic/index.html

Algae Plants

Chara (Algae)                                                             Stonewort (Algae)

Filamentous Algae                                                      Plankton Algae

Photo of Blue-Green Algae (Plankton Algae or also may be known as 'Cyanobacteria'

Excessive growth of filamentous algae is usually a sign of high nutrient levels in the lake.  Therefore, the primary prevention strategy is to control the sources of nutrients washing into the lake. Using no-phosphorus fertilizers, maintaining septic systems regularly, diverting roof and driveway runoff into grassy areas rather than directly to the lake, disposing of pet wastes in the garbage, and planting a buffer of native plants next to the lake shore are the best actions to help prevent nutrients from reaching the water.

Emergent Plants

Awlwort                                                           Bulrushes

Cattail                                                             Flowering Rush (Invasive Species)

Purple Loosestrife (Invasive Species)                                               Wild Rice

Floating Leaf Plants

Duckweeds                             Lesser Duckweed                      Star Duckweed

Floating Marsh Marigold (rare)                                 Small White Water Lily (rare)

Spatterdock                                                                Swamp Smartweed

Watershield                                                                White Water Lily

Yellow Lotus

Submerged Plants

Broad-leaf Pondweeds                                                Bushy Pondweeds and Naiads

Canada Waterweed                                                     Coontail

Curlyleaf Pondweed                                        Eurasian Watermilfoil

Narrow-leaf Pondweeds                                              Northern Watermilfoil

Snailseed Pondweed                                                   Water Celery