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Vegetation - Stratified Random Sampling 2001

Figure 6. Aquatic area strata and sampling points in Pool 11, Upper Mississippi River System, 2001.

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	Figure 6.  Species: all submersed species, Chara spp., coontail (Ceratophyllum demersum), curly pondweed (Potamogeton crispus), flatstem pondweed (P. zosteriformis), and leafy/small pondweed (P. foliosus/pusillus).
	Figure 6. Continued. Species: longleaf pondweed (Potamogeton nodosus), sago pondweed (P. pectinatus), water stargrass (Heteranthera dubia), Eurasian watermilfoil (Myriophyllum spicatum), nodding waternymph (Najas flexilis), and southern waternymph (N. guadalupensis).
	Figure 6. Continued. Species: Canadian waterweed (Elodea canadensis), wildcelery (Vallisneria americana), all rooted floating–leaf species, American lotus (Nelumbo lutea), yellow pond-lily (Nuphar variegata), and white waterlily (Nymphaea odorata).

Page Last Modified: April 17, 2018