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Rivers

Plant Database
Long (aquatic) roots and long stem with many small green leaves
Hydrilla
Hydrilla verticillata
Small yellow flower
Large-Flower Primrose Willow
Ludwigia grandiflora ssp. grandiflora
Juvenile Ludwigia leaves are spatulate in shape and star-shaped in arrangement.
Six-Petal Water Primrose
Ludwigia grandiflora ssp. hexapetala
a carpet of parrotfeather clogs a waterbody.
Parrotfeather
Myriophyllum aquaticum
a patch of wapato in the river with upright arrow shaped leaves pointing upward about 2 ft tall.
Wapato
Sagittaria latifolia
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