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Spirogyra | Ohio Sea Grant

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Spirogyra

Spirogyra is a very common unbranched, benthic, filamentous green alga (technically, Spirogyra is in Charophyta).

Genus: Spirogyra

Green algae

Spirogyra is a very common unbranched, benthic, filamentous green alga (technically, Spirogyra is in Charophyta). Spirogyra's defining characteristic is its spiral chloroplast. The chloroplast can be tightly coiled or stretched out (like a spring that is either compressed or stretched).