Rotala
rotala, toothcup
1 species
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Rotala ramosiorlowland toothcup
Distribution: Occurrng east of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California, east across most the the U.S., and in Ontario, to the Atlantic Coast.
Habitat: Wet places and muddy shores.
Origin: Native
Flowers: June-August
Growth Duration: Annual