2006 California Academy of Sciences   cc-by-nc-sa-3.0

Sargassum muticum (Japweed) is a species of brown algae in the family Sargassaceae. They are associated with freshwater habitat. They are native to Japan, Russia, North Korea, South Korea, and China.

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EOL has data for 15 attributes, including:

Known occurrences, collected specimens and observations of japweed. View this species on GBIF