Chara braunii is one of only several ecorticate species of the genus Chara occurring in Europe and the only species without cortication known from Poland. Chara braunii is the first Charophyceae for which the whole nuclear genome has been sequenced and published.

The findings of C. braunii in southern Poland only in fish ponds may have suggested that this species is restricted only to this type of ecosystem, but this is not true.

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