During field studies conducted in recent years in the Vologda Region, Nitella confervacea, one of the rarest species of Russian flora, has been rediscovered. The species, currently listed in the regional Red Data Book as endangered, was discovered in a temporary waterbody of anthropogenic origin. Data on the species’ locality, habitat, morphology, and voucher specimens are provided. Distributional data on three generalist species, Chara contraria, C. globularis, and C. vulgaris, are also presented.
aquatic flora, Chara contraria, Chara globularis, Chara vulgaris, Nitella confervacea, rare species
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